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Finding the Fourth Proportional to 632,456.10, 873,049.05 and 428,785.92

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Solution

The fourth proportional to 632,456.10, 873,049.05 and 428,785.92 is: 591,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,456.10 : 873,049.05 = 428,785.92 : x
  2. Step 2: Convert to fraction form
    632,456.10/873,049.05 = 428,785.92/x
  3. Step 3: Cross multiply
    632,456.10x = 873,049.05 × 428,785.92
  4. Step 4: Simplify right side
    632,456.10x = 374,351,140,109.38
  5. Step 5: Solve for x
    x = 374,351,140,109.38/632,456.10
  6. Step 6: Final answer
    x = 591,900.59

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Double scale
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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.