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Finding the Fourth Proportional to 675,255.52, 932,036.88 and 420,456.16

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Solution

The fourth proportional to 675,255.52, 932,036.88 and 420,456.16 is: 580,344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,255.52 : 932,036.88 = 420,456.16 : x
  2. Step 2: Convert to fraction form
    675,255.52/932,036.88 = 420,456.16/x
  3. Step 3: Cross multiply
    675,255.52x = 932,036.88 × 420,456.16
  4. Step 4: Simplify right side
    675,255.52x = 391,880,647,543.18
  5. Step 5: Solve for x
    x = 391,880,647,543.18/675,255.52
  6. Step 6: Final answer
    x = 580,344.23

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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.