Home / 769,981.40-1,153,659.90-657,132.20

Finding the Fourth Proportional to 769,981.40, 1,153,659.90 and 657,132.20

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Solution

The fourth proportional to 769,981.40, 1,153,659.90 and 657,132.20 is: 984,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,981.40 : 1,153,659.90 = 657,132.20 : x
  2. Step 2: Convert to fraction form
    769,981.40/1,153,659.90 = 657,132.20/x
  3. Step 3: Cross multiply
    769,981.40x = 1,153,659.90 × 657,132.20
  4. Step 4: Simplify right side
    769,981.40x = 758,107,068,138.78
  5. Step 5: Solve for x
    x = 758,107,068,138.78/769,981.40
  6. Step 6: Final answer
    x = 984,578.42

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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.