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Finding the Fourth Proportional to 576,006.20, 864,009.30 and 432,927.80

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Solution

The fourth proportional to 576,006.20, 864,009.30 and 432,927.80 is: 649,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,006.20 : 864,009.30 = 432,927.80 : x
  2. Step 2: Convert to fraction form
    576,006.20/864,009.30 = 432,927.80/x
  3. Step 3: Cross multiply
    576,006.20x = 864,009.30 × 432,927.80
  4. Step 4: Simplify right side
    576,006.20x = 374,053,645,428.54
  5. Step 5: Solve for x
    x = 374,053,645,428.54/576,006.20
  6. Step 6: Final answer
    x = 649,391.70

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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.