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Finding the Fourth Proportional to 451,487.71, 623,132.40 and 342,951.49

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Solution

The fourth proportional to 451,487.71, 623,132.40 and 342,951.49 is: 473,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,487.71 : 623,132.40 = 342,951.49 : x
  2. Step 2: Convert to fraction form
    451,487.71/623,132.40 = 342,951.49/x
  3. Step 3: Cross multiply
    451,487.71x = 623,132.40 × 342,951.49
  4. Step 4: Simplify right side
    451,487.71x = 213,704,185,047.28
  5. Step 5: Solve for x
    x = 213,704,185,047.28/451,487.71
  6. Step 6: Final answer
    x = 473,333.34

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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.