Home / 981,938.97-1,354,796.28-589,312.40

Finding the Fourth Proportional to 981,938.97, 1,354,796.28 and 589,312.40

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Solution

The fourth proportional to 981,938.97, 1,354,796.28 and 589,312.40 is: 813,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,938.97 : 1,354,796.28 = 589,312.40 : x
  2. Step 2: Convert to fraction form
    981,938.97/1,354,796.28 = 589,312.40/x
  3. Step 3: Cross multiply
    981,938.97x = 1,354,796.28 × 589,312.40
  4. Step 4: Simplify right side
    981,938.97x = 798,398,240,503.89
  5. Step 5: Solve for x
    x = 798,398,240,503.89/981,938.97
  6. Step 6: Final answer
    x = 813,083.36

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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.