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Finding the Fourth Proportional to 624,450, 861,740.95 and 337,970.08

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Solution

The fourth proportional to 624,450, 861,740.95 and 337,970.08 is: 466,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,450 : 861,740.95 = 337,970.08 : x
  2. Step 2: Convert to fraction form
    624,450/861,740.95 = 337,970.08/x
  3. Step 3: Cross multiply
    624,450x = 861,740.95 × 337,970.08
  4. Step 4: Simplify right side
    624,450x = 291,242,657,810.78
  5. Step 5: Solve for x
    x = 291,242,657,810.78/624,450
  6. Step 6: Final answer
    x = 466,398.68

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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.