Home / 722,934.30-1,084,401.45-688,719.90

Finding the Fourth Proportional to 722,934.30, 1,084,401.45 and 688,719.90

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Solution

The fourth proportional to 722,934.30, 1,084,401.45 and 688,719.90 is: 1,033,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,934.30 : 1,084,401.45 = 688,719.90 : x
  2. Step 2: Convert to fraction form
    722,934.30/1,084,401.45 = 688,719.90/x
  3. Step 3: Cross multiply
    722,934.30x = 1,084,401.45 × 688,719.90
  4. Step 4: Simplify right side
    722,934.30x = 746,848,858,203.86
  5. Step 5: Solve for x
    x = 746,848,858,203.86/722,934.30
  6. Step 6: Final answer
    x = 1,033,079.85

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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.