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Finding the Fourth Proportional to 571,741.70, 856,920.24 and 318,753.54

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Solution

The fourth proportional to 571,741.70, 856,920.24 and 318,753.54 is: 477,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,741.70 : 856,920.24 = 318,753.54 : x
  2. Step 2: Convert to fraction form
    571,741.70/856,920.24 = 318,753.54/x
  3. Step 3: Cross multiply
    571,741.70x = 856,920.24 × 318,753.54
  4. Step 4: Simplify right side
    571,741.70x = 273,146,359,997.65
  5. Step 5: Solve for x
    x = 273,146,359,997.65/571,741.70
  6. Step 6: Final answer
    x = 477,744.34

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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.