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Finding the Fourth Proportional to 624,329.52, 861,573.72 and 352,454.64

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Solution

The fourth proportional to 624,329.52, 861,573.72 and 352,454.64 is: 486,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,329.52 : 861,573.72 = 352,454.64 : x
  2. Step 2: Convert to fraction form
    624,329.52/861,573.72 = 352,454.64/x
  3. Step 3: Cross multiply
    624,329.52x = 861,573.72 × 352,454.64
  4. Step 4: Simplify right side
    624,329.52x = 303,665,655,316.06
  5. Step 5: Solve for x
    x = 303,665,655,316.06/624,329.52
  6. Step 6: Final answer
    x = 486,386.83

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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.