Home / 747,161.39-1,031,074.15-420,473.15

Finding the Fourth Proportional to 747,161.39, 1,031,074.15 and 420,473.15

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Solution

The fourth proportional to 747,161.39, 1,031,074.15 and 420,473.15 is: 580,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,161.39 : 1,031,074.15 = 420,473.15 : x
  2. Step 2: Convert to fraction form
    747,161.39/1,031,074.15 = 420,473.15/x
  3. Step 3: Cross multiply
    747,161.39x = 1,031,074.15 × 420,473.15
  4. Step 4: Simplify right side
    747,161.39x = 433,538,989,527.52
  5. Step 5: Solve for x
    x = 433,538,989,527.52/747,161.39
  6. Step 6: Final answer
    x = 580,248.11

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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.