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Finding the Fourth Proportional to 426,420.50, 588,512.13 and 247,572.50

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Solution

The fourth proportional to 426,420.50, 588,512.13 and 247,572.50 is: 341,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,420.50 : 588,512.13 = 247,572.50 : x
  2. Step 2: Convert to fraction form
    426,420.50/588,512.13 = 247,572.50/x
  3. Step 3: Cross multiply
    426,420.50x = 588,512.13 × 247,572.50
  4. Step 4: Simplify right side
    426,420.50x = 145,699,419,304.43
  5. Step 5: Solve for x
    x = 145,699,419,304.43/426,420.50
  6. Step 6: Final answer
    x = 341,680.15

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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.