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Finding the Fourth Proportional to 508,747.20, 702,036 and 282,374.88

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Solution

The fourth proportional to 508,747.20, 702,036 and 282,374.88 is: 389,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,747.20 : 702,036 = 282,374.88 : x
  2. Step 2: Convert to fraction form
    508,747.20/702,036 = 282,374.88/x
  3. Step 3: Cross multiply
    508,747.20x = 702,036 × 282,374.88
  4. Step 4: Simplify right side
    508,747.20x = 198,237,331,255.68
  5. Step 5: Solve for x
    x = 198,237,331,255.68/508,747.20
  6. Step 6: Final answer
    x = 389,657.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.