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Finding the Fourth Proportional to 624,630.71, 861,992.33 and 338,150.12

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Solution

The fourth proportional to 624,630.71, 861,992.33 and 338,150.12 is: 466,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,630.71 : 861,992.33 = 338,150.12 : x
  2. Step 2: Convert to fraction form
    624,630.71/861,992.33 = 338,150.12/x
  3. Step 3: Cross multiply
    624,630.71x = 861,992.33 × 338,150.12
  4. Step 4: Simplify right side
    624,630.71x = 291,482,809,828.58
  5. Step 5: Solve for x
    x = 291,482,809,828.58/624,630.71
  6. Step 6: Final answer
    x = 466,648.22

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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.