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Finding the Fourth Proportional to 500,956.20, 749,660.48 and 311,505.78

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Solution

The fourth proportional to 500,956.20, 749,660.48 and 311,505.78 is: 466,155.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,956.20 : 749,660.48 = 311,505.78 : x
  2. Step 2: Convert to fraction form
    500,956.20/749,660.48 = 311,505.78/x
  3. Step 3: Cross multiply
    500,956.20x = 749,660.48 × 311,505.78
  4. Step 4: Simplify right side
    500,956.20x = 233,523,572,557.57
  5. Step 5: Solve for x
    x = 233,523,572,557.57/500,956.20
  6. Step 6: Final answer
    x = 466,155.67

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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.