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Finding the Fourth Proportional to 508,672.76, 702,001.20 and 282,318.24

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Solution

The fourth proportional to 508,672.76, 702,001.20 and 282,318.24 is: 389,617.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,672.76 : 702,001.20 = 282,318.24 : x
  2. Step 2: Convert to fraction form
    508,672.76/702,001.20 = 282,318.24/x
  3. Step 3: Cross multiply
    508,672.76x = 702,001.20 × 282,318.24
  4. Step 4: Simplify right side
    508,672.76x = 198,187,743,261.89
  5. Step 5: Solve for x
    x = 198,187,743,261.89/508,672.76
  6. Step 6: Final answer
    x = 389,617.37

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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.