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Finding the Fourth Proportional to 981,754.56, 1,470,707.28 and 508,750.20

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Solution

The fourth proportional to 981,754.56, 1,470,707.28 and 508,750.20 is: 762,127.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,754.56 : 1,470,707.28 = 508,750.20 : x
  2. Step 2: Convert to fraction form
    981,754.56/1,470,707.28 = 508,750.20/x
  3. Step 3: Cross multiply
    981,754.56x = 1,470,707.28 × 508,750.20
  4. Step 4: Simplify right side
    981,754.56x = 748,222,622,841.46
  5. Step 5: Solve for x
    x = 748,222,622,841.46/981,754.56
  6. Step 6: Final answer
    x = 762,127.98

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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.