Home / 720,121.30-1,080,181.95-587,151.70

Finding the Fourth Proportional to 720,121.30, 1,080,181.95 and 587,151.70

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Solution

The fourth proportional to 720,121.30, 1,080,181.95 and 587,151.70 is: 880,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,121.30 : 1,080,181.95 = 587,151.70 : x
  2. Step 2: Convert to fraction form
    720,121.30/1,080,181.95 = 587,151.70/x
  3. Step 3: Cross multiply
    720,121.30x = 1,080,181.95 × 587,151.70
  4. Step 4: Simplify right side
    720,121.30x = 634,230,668,251.82
  5. Step 5: Solve for x
    x = 634,230,668,251.82/720,121.30
  6. Step 6: Final answer
    x = 880,727.55

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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.