Home / 801,067.50-1,105,474.23-499,261.50

Finding the Fourth Proportional to 801,067.50, 1,105,474.23 and 499,261.50

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Solution

The fourth proportional to 801,067.50, 1,105,474.23 and 499,261.50 is: 688,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,067.50 : 1,105,474.23 = 499,261.50 : x
  2. Step 2: Convert to fraction form
    801,067.50/1,105,474.23 = 499,261.50/x
  3. Step 3: Cross multiply
    801,067.50x = 1,105,474.23 × 499,261.50
  4. Step 4: Simplify right side
    801,067.50x = 551,920,722,281.15
  5. Step 5: Solve for x
    x = 551,920,722,281.15/801,067.50
  6. Step 6: Final answer
    x = 688,981.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.