Home / 947,378.56-1,418,521.36-721,663.76

Finding the Fourth Proportional to 947,378.56, 1,418,521.36 and 721,663.76

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Solution

The fourth proportional to 947,378.56, 1,418,521.36 and 721,663.76 is: 1,080,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,378.56 : 1,418,521.36 = 721,663.76 : x
  2. Step 2: Convert to fraction form
    947,378.56/1,418,521.36 = 721,663.76/x
  3. Step 3: Cross multiply
    947,378.56x = 1,418,521.36 × 721,663.76
  4. Step 4: Simplify right side
    947,378.56x = 1,023,695,458,297.91
  5. Step 5: Solve for x
    x = 1,023,695,458,297.91/947,378.56
  6. Step 6: Final answer
    x = 1,080,555.86

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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.