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Finding the Fourth Proportional to 655,629, 983,612.50 and 356,032.68

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Solution

The fourth proportional to 655,629, 983,612.50 and 356,032.68 is: 534,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,629 : 983,612.50 = 356,032.68 : x
  2. Step 2: Convert to fraction form
    655,629/983,612.50 = 356,032.68/x
  3. Step 3: Cross multiply
    655,629x = 983,612.50 × 356,032.68
  4. Step 4: Simplify right side
    655,629x = 350,198,194,456.50
  5. Step 5: Solve for x
    x = 350,198,194,456.50/655,629
  6. Step 6: Final answer
    x = 534,140.79

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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.