Home / 521,008.20-780,929.10-296,476.20

Finding the Fourth Proportional to 521,008.20, 780,929.10 and 296,476.20

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Solution

The fourth proportional to 521,008.20, 780,929.10 and 296,476.20 is: 444,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,008.20 : 780,929.10 = 296,476.20 : x
  2. Step 2: Convert to fraction form
    521,008.20/780,929.10 = 296,476.20/x
  3. Step 3: Cross multiply
    521,008.20x = 780,929.10 × 296,476.20
  4. Step 4: Simplify right side
    521,008.20x = 231,526,892,037.42
  5. Step 5: Solve for x
    x = 231,526,892,037.42/521,008.20
  6. Step 6: Final answer
    x = 444,382.43

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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.