Home / 947,374.57-1,418,515.37-721,659.77

Finding the Fourth Proportional to 947,374.57, 1,418,515.37 and 721,659.77

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Solution

The fourth proportional to 947,374.57, 1,418,515.37 and 721,659.77 is: 1,080,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,374.57 : 1,418,515.37 = 721,659.77 : x
  2. Step 2: Convert to fraction form
    947,374.57/1,418,515.37 = 721,659.77/x
  3. Step 3: Cross multiply
    947,374.57x = 1,418,515.37 × 721,659.77
  4. Step 4: Simplify right side
    947,374.57x = 1,023,685,469,463.38
  5. Step 5: Solve for x
    x = 1,023,685,469,463.38/947,374.57
  6. Step 6: Final answer
    x = 1,080,549.87

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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.