Home / 1,387,163.60-2,080,330.68-721,952.72

Finding the Fourth Proportional to 1,387,163.60, 2,080,330.68 and 721,952.72

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Solution

The fourth proportional to 1,387,163.60, 2,080,330.68 and 721,952.72 is: 1,082,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,163.60 : 2,080,330.68 = 721,952.72 : x
  2. Step 2: Convert to fraction form
    1,387,163.60/2,080,330.68 = 721,952.72/x
  3. Step 3: Cross multiply
    1,387,163.60x = 2,080,330.68 × 721,952.72
  4. Step 4: Simplify right side
    1,387,163.60x = 1,501,900,392,925.45
  5. Step 5: Solve for x
    x = 1,501,900,392,925.45/1,387,163.60
  6. Step 6: Final answer
    x = 1,082,713.24

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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.