Home / 917,338.20-1,376,007.30-243,418.20

Finding the Fourth Proportional to 917,338.20, 1,376,007.30 and 243,418.20

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Solution

The fourth proportional to 917,338.20, 1,376,007.30 and 243,418.20 is: 365,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,338.20 : 1,376,007.30 = 243,418.20 : x
  2. Step 2: Convert to fraction form
    917,338.20/1,376,007.30 = 243,418.20/x
  3. Step 3: Cross multiply
    917,338.20x = 1,376,007.30 × 243,418.20
  4. Step 4: Simplify right side
    917,338.20x = 334,945,220,152.86
  5. Step 5: Solve for x
    x = 334,945,220,152.86/917,338.20
  6. Step 6: Final answer
    x = 365,127.30

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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.