Home / 3,178,287.20-4,386,163.68-1,727,978.15

Finding the Fourth Proportional to 3,178,287.20, 4,386,163.68 and 1,727,978.15

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Solution

The fourth proportional to 3,178,287.20, 4,386,163.68 and 1,727,978.15 is: 2,384,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,287.20 : 4,386,163.68 = 1,727,978.15 : x
  2. Step 2: Convert to fraction form
    3,178,287.20/4,386,163.68 = 1,727,978.15/x
  3. Step 3: Cross multiply
    3,178,287.20x = 4,386,163.68 × 1,727,978.15
  4. Step 4: Simplify right side
    3,178,287.20x = 7,579,194,979,432.77
  5. Step 5: Solve for x
    x = 7,579,194,979,432.77/3,178,287.20
  6. Step 6: Final answer
    x = 2,384,679.08

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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.