Home / 1,126,640.10-1,687,663.80-698,862.90

Finding the Fourth Proportional to 1,126,640.10, 1,687,663.80 and 698,862.90

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Solution

The fourth proportional to 1,126,640.10, 1,687,663.80 and 698,862.90 is: 1,046,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,640.10 : 1,687,663.80 = 698,862.90 : x
  2. Step 2: Convert to fraction form
    1,126,640.10/1,687,663.80 = 698,862.90/x
  3. Step 3: Cross multiply
    1,126,640.10x = 1,687,663.80 × 698,862.90
  4. Step 4: Simplify right side
    1,126,640.10x = 1,179,445,617,493.02
  5. Step 5: Solve for x
    x = 1,179,445,617,493.02/1,126,640.10
  6. Step 6: Final answer
    x = 1,046,869.91

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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.