Home / 816,108.76-1,126,142.22-453,450.70

Finding the Fourth Proportional to 816,108.76, 1,126,142.22 and 453,450.70

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Solution

The fourth proportional to 816,108.76, 1,126,142.22 and 453,450.70 is: 625,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,108.76 : 1,126,142.22 = 453,450.70 : x
  2. Step 2: Convert to fraction form
    816,108.76/1,126,142.22 = 453,450.70/x
  3. Step 3: Cross multiply
    816,108.76x = 1,126,142.22 × 453,450.70
  4. Step 4: Simplify right side
    816,108.76x = 510,649,977,958.55
  5. Step 5: Solve for x
    x = 510,649,977,958.55/816,108.76
  6. Step 6: Final answer
    x = 625,713.14

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Half scale
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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.