Home / 1,210,117.20-1,815,175.80-323,653.20

Finding the Fourth Proportional to 1,210,117.20, 1,815,175.80 and 323,653.20

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Solution

The fourth proportional to 1,210,117.20, 1,815,175.80 and 323,653.20 is: 485,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,117.20 : 1,815,175.80 = 323,653.20 : x
  2. Step 2: Convert to fraction form
    1,210,117.20/1,815,175.80 = 323,653.20/x
  3. Step 3: Cross multiply
    1,210,117.20x = 1,815,175.80 × 323,653.20
  4. Step 4: Simplify right side
    1,210,117.20x = 587,487,456,232.56
  5. Step 5: Solve for x
    x = 587,487,456,232.56/1,210,117.20
  6. Step 6: Final answer
    x = 485,479.80

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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.