Home / 727,722.18-1,091,780.04-412,400.52

Finding the Fourth Proportional to 727,722.18, 1,091,780.04 and 412,400.52

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Solution

The fourth proportional to 727,722.18, 1,091,780.04 and 412,400.52 is: 618,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,722.18 : 1,091,780.04 = 412,400.52 : x
  2. Step 2: Convert to fraction form
    727,722.18/1,091,780.04 = 412,400.52/x
  3. Step 3: Cross multiply
    727,722.18x = 1,091,780.04 × 412,400.52
  4. Step 4: Simplify right side
    727,722.18x = 450,250,656,221.62
  5. Step 5: Solve for x
    x = 450,250,656,221.62/727,722.18
  6. Step 6: Final answer
    x = 618,712.29

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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.