Home / 812,238.27-1,121,006.12-468,008.30

Finding the Fourth Proportional to 812,238.27, 1,121,006.12 and 468,008.30

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Solution

The fourth proportional to 812,238.27, 1,121,006.12 and 468,008.30 is: 645,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,238.27 : 1,121,006.12 = 468,008.30 : x
  2. Step 2: Convert to fraction form
    812,238.27/1,121,006.12 = 468,008.30/x
  3. Step 3: Cross multiply
    812,238.27x = 1,121,006.12 × 468,008.30
  4. Step 4: Simplify right side
    812,238.27x = 524,640,160,565.72
  5. Step 5: Solve for x
    x = 524,640,160,565.72/812,238.27
  6. Step 6: Final answer
    x = 645,919.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.