Home / 571,749.21-856,931.49-318,761.04

Finding the Fourth Proportional to 571,749.21, 856,931.49 and 318,761.04

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Solution

The fourth proportional to 571,749.21, 856,931.49 and 318,761.04 is: 477,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,749.21 : 856,931.49 = 318,761.04 : x
  2. Step 2: Convert to fraction form
    571,749.21/856,931.49 = 318,761.04/x
  3. Step 3: Cross multiply
    571,749.21x = 856,931.49 × 318,761.04
  4. Step 4: Simplify right side
    571,749.21x = 273,156,372,961.15
  5. Step 5: Solve for x
    x = 273,156,372,961.15/571,749.21
  6. Step 6: Final answer
    x = 477,755.58

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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.