Home / 814,272.70-1,123,703.11-451,720.30

Finding the Fourth Proportional to 814,272.70, 1,123,703.11 and 451,720.30

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Solution

The fourth proportional to 814,272.70, 1,123,703.11 and 451,720.30 is: 623,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,272.70 : 1,123,703.11 = 451,720.30 : x
  2. Step 2: Convert to fraction form
    814,272.70/1,123,703.11 = 451,720.30/x
  3. Step 3: Cross multiply
    814,272.70x = 1,123,703.11 × 451,720.30
  4. Step 4: Simplify right side
    814,272.70x = 507,599,505,960.13
  5. Step 5: Solve for x
    x = 507,599,505,960.13/814,272.70
  6. Step 6: Final answer
    x = 623,377.78

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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.