Home / 816,375.40-1,126,591.78-458,679.40

Finding the Fourth Proportional to 816,375.40, 1,126,591.78 and 458,679.40

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Solution

The fourth proportional to 816,375.40, 1,126,591.78 and 458,679.40 is: 632,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,375.40 : 1,126,591.78 = 458,679.40 : x
  2. Step 2: Convert to fraction form
    816,375.40/1,126,591.78 = 458,679.40/x
  3. Step 3: Cross multiply
    816,375.40x = 1,126,591.78 × 458,679.40
  4. Step 4: Simplify right side
    816,375.40x = 516,744,441,695.33
  5. Step 5: Solve for x
    x = 516,744,441,695.33/816,375.40
  6. Step 6: Final answer
    x = 632,974.05

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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.