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Finding the Fourth Proportional to 618,073.70, 927,110.55 and 477,932.90

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Solution

The fourth proportional to 618,073.70, 927,110.55 and 477,932.90 is: 716,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,073.70 : 927,110.55 = 477,932.90 : x
  2. Step 2: Convert to fraction form
    618,073.70/927,110.55 = 477,932.90/x
  3. Step 3: Cross multiply
    618,073.70x = 927,110.55 × 477,932.90
  4. Step 4: Simplify right side
    618,073.70x = 443,096,633,782.10
  5. Step 5: Solve for x
    x = 443,096,633,782.10/618,073.70
  6. Step 6: Final answer
    x = 716,899.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.