Home / 708,132.24-1,062,640.92-287,408.12

Finding the Fourth Proportional to 708,132.24, 1,062,640.92 and 287,408.12

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Solution

The fourth proportional to 708,132.24, 1,062,640.92 and 287,408.12 is: 431,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,132.24 : 1,062,640.92 = 287,408.12 : x
  2. Step 2: Convert to fraction form
    708,132.24/1,062,640.92 = 287,408.12/x
  3. Step 3: Cross multiply
    708,132.24x = 1,062,640.92 × 287,408.12
  4. Step 4: Simplify right side
    708,132.24x = 305,411,624,816.85
  5. Step 5: Solve for x
    x = 305,411,624,816.85/708,132.24
  6. Step 6: Final answer
    x = 431,291.79

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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.