Home / 1,213,338.20-1,820,007.30-326,874.20

Finding the Fourth Proportional to 1,213,338.20, 1,820,007.30 and 326,874.20

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Solution

The fourth proportional to 1,213,338.20, 1,820,007.30 and 326,874.20 is: 490,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,338.20 : 1,820,007.30 = 326,874.20 : x
  2. Step 2: Convert to fraction form
    1,213,338.20/1,820,007.30 = 326,874.20/x
  3. Step 3: Cross multiply
    1,213,338.20x = 1,820,007.30 × 326,874.20
  4. Step 4: Simplify right side
    1,213,338.20x = 594,913,430,181.66
  5. Step 5: Solve for x
    x = 594,913,430,181.66/1,213,338.20
  6. Step 6: Final answer
    x = 490,311.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.