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Finding the Fourth Proportional to 521,767.80, 782,457.30 and 363,526.20

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Solution

The fourth proportional to 521,767.80, 782,457.30 and 363,526.20 is: 545,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,767.80 : 782,457.30 = 363,526.20 : x
  2. Step 2: Convert to fraction form
    521,767.80/782,457.30 = 363,526.20/x
  3. Step 3: Cross multiply
    521,767.80x = 782,457.30 × 363,526.20
  4. Step 4: Simplify right side
    521,767.80x = 284,443,728,931.26
  5. Step 5: Solve for x
    x = 284,443,728,931.26/521,767.80
  6. Step 6: Final answer
    x = 545,153.86

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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.