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Finding the Fourth Proportional to 618,101.70, 927,152.55 and 477,960.90

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Solution

The fourth proportional to 618,101.70, 927,152.55 and 477,960.90 is: 716,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,101.70 : 927,152.55 = 477,960.90 : x
  2. Step 2: Convert to fraction form
    618,101.70/927,152.55 = 477,960.90/x
  3. Step 3: Cross multiply
    618,101.70x = 927,152.55 × 477,960.90
  4. Step 4: Simplify right side
    618,101.70x = 443,142,667,235.30
  5. Step 5: Solve for x
    x = 443,142,667,235.30/618,101.70
  6. Step 6: Final answer
    x = 716,941.35

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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.