Home / 1,142,855.62-1,711,999.17-687,197.37

Finding the Fourth Proportional to 1,142,855.62, 1,711,999.17 and 687,197.37

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Solution

The fourth proportional to 1,142,855.62, 1,711,999.17 and 687,197.37 is: 1,029,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,855.62 : 1,711,999.17 = 687,197.37 : x
  2. Step 2: Convert to fraction form
    1,142,855.62/1,711,999.17 = 687,197.37/x
  3. Step 3: Cross multiply
    1,142,855.62x = 1,711,999.17 × 687,197.37
  4. Step 4: Simplify right side
    1,142,855.62x = 1,176,481,318,506.19
  5. Step 5: Solve for x
    x = 1,176,481,318,506.19/1,142,855.62
  6. Step 6: Final answer
    x = 1,029,422.53

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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.