Home / 747,481.14-1,031,200.38-457,105.40

Finding the Fourth Proportional to 747,481.14, 1,031,200.38 and 457,105.40

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Solution

The fourth proportional to 747,481.14, 1,031,200.38 and 457,105.40 is: 630,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,481.14 : 1,031,200.38 = 457,105.40 : x
  2. Step 2: Convert to fraction form
    747,481.14/1,031,200.38 = 457,105.40/x
  3. Step 3: Cross multiply
    747,481.14x = 1,031,200.38 × 457,105.40
  4. Step 4: Simplify right side
    747,481.14x = 471,367,262,180.05
  5. Step 5: Solve for x
    x = 471,367,262,180.05/747,481.14
  6. Step 6: Final answer
    x = 630,607.57

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Double scale
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Similar ratio
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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.