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Finding the Fourth Proportional to 765,651, 1,148,388.96 and 204,729.24

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Solution

The fourth proportional to 765,651, 1,148,388.96 and 204,729.24 is: 307,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,651 : 1,148,388.96 = 204,729.24 : x
  2. Step 2: Convert to fraction form
    765,651/1,148,388.96 = 204,729.24/x
  3. Step 3: Cross multiply
    765,651x = 1,148,388.96 × 204,729.24
  4. Step 4: Simplify right side
    765,651x = 235,108,799,005.19
  5. Step 5: Solve for x
    x = 235,108,799,005.19/765,651
  6. Step 6: Final answer
    x = 307,070.45

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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.