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Finding the Fourth Proportional to 508,799.96, 702,116.52 and 282,430.88

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Solution

The fourth proportional to 508,799.96, 702,116.52 and 282,430.88 is: 389,739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,799.96 : 702,116.52 = 282,430.88 : x
  2. Step 2: Convert to fraction form
    508,799.96/702,116.52 = 282,430.88/x
  3. Step 3: Cross multiply
    508,799.96x = 702,116.52 × 282,430.88
  4. Step 4: Simplify right side
    508,799.96x = 198,299,383,095.56
  5. Step 5: Solve for x
    x = 198,299,383,095.56/508,799.96
  6. Step 6: Final answer
    x = 389,739.39

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1.5x scale

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.