Home / 814,000.24-1,123,320.66-451,428.40

Finding the Fourth Proportional to 814,000.24, 1,123,320.66 and 451,428.40

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Solution

The fourth proportional to 814,000.24, 1,123,320.66 and 451,428.40 is: 622,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,000.24 : 1,123,320.66 = 451,428.40 : x
  2. Step 2: Convert to fraction form
    814,000.24/1,123,320.66 = 451,428.40/x
  3. Step 3: Cross multiply
    814,000.24x = 1,123,320.66 × 451,428.40
  4. Step 4: Simplify right side
    814,000.24x = 507,098,848,230.74
  5. Step 5: Solve for x
    x = 507,098,848,230.74/814,000.24
  6. Step 6: Final answer
    x = 622,971.37

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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.