Home / 749,132.10-1,124,402.85-394,400.70

Finding the Fourth Proportional to 749,132.10, 1,124,402.85 and 394,400.70

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Solution

The fourth proportional to 749,132.10, 1,124,402.85 and 394,400.70 is: 591,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,132.10 : 1,124,402.85 = 394,400.70 : x
  2. Step 2: Convert to fraction form
    749,132.10/1,124,402.85 = 394,400.70/x
  3. Step 3: Cross multiply
    749,132.10x = 1,124,402.85 × 394,400.70
  4. Step 4: Simplify right side
    749,132.10x = 443,465,271,122.00
  5. Step 5: Solve for x
    x = 443,465,271,122.00/749,132.10
  6. Step 6: Final answer
    x = 591,972.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.