Home / 981,345.45-1,354,400.15-551,660.97

Finding the Fourth Proportional to 981,345.45, 1,354,400.15 and 551,660.97

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Solution

The fourth proportional to 981,345.45, 1,354,400.15 and 551,660.97 is: 761,372.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,345.45 : 1,354,400.15 = 551,660.97 : x
  2. Step 2: Convert to fraction form
    981,345.45/1,354,400.15 = 551,660.97/x
  3. Step 3: Cross multiply
    981,345.45x = 1,354,400.15 × 551,660.97
  4. Step 4: Simplify right side
    981,345.45x = 747,169,697,758.84
  5. Step 5: Solve for x
    x = 747,169,697,758.84/981,345.45
  6. Step 6: Final answer
    x = 761,372.76

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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.