Home / 981,513.72-1,354,487.40-551,794.68

Finding the Fourth Proportional to 981,513.72, 1,354,487.40 and 551,794.68

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Solution

The fourth proportional to 981,513.72, 1,354,487.40 and 551,794.68 is: 761,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,513.72 : 1,354,487.40 = 551,794.68 : x
  2. Step 2: Convert to fraction form
    981,513.72/1,354,487.40 = 551,794.68/x
  3. Step 3: Cross multiply
    981,513.72x = 1,354,487.40 × 551,794.68
  4. Step 4: Simplify right side
    981,513.72x = 747,398,941,447.03
  5. Step 5: Solve for x
    x = 747,398,941,447.03/981,513.72
  6. Step 6: Final answer
    x = 761,475.80

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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.