Home / 814,001.38-1,123,321.90-451,480.74

Finding the Fourth Proportional to 814,001.38, 1,123,321.90 and 451,480.74

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Solution

The fourth proportional to 814,001.38, 1,123,321.90 and 451,480.74 is: 623,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,001.38 : 1,123,321.90 = 451,480.74 : x
  2. Step 2: Convert to fraction form
    814,001.38/1,123,321.90 = 451,480.74/x
  3. Step 3: Cross multiply
    814,001.38x = 1,123,321.90 × 451,480.74
  4. Step 4: Simplify right side
    814,001.38x = 507,158,202,670.21
  5. Step 5: Solve for x
    x = 507,158,202,670.21/814,001.38
  6. Step 6: Final answer
    x = 623,043.42

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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.