Home / 1,126,999.38-1,689,963.92-653,829.78

Finding the Fourth Proportional to 1,126,999.38, 1,689,963.92 and 653,829.78

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Solution

The fourth proportional to 1,126,999.38, 1,689,963.92 and 653,829.78 is: 980,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,999.38 : 1,689,963.92 = 653,829.78 : x
  2. Step 2: Convert to fraction form
    1,126,999.38/1,689,963.92 = 653,829.78/x
  3. Step 3: Cross multiply
    1,126,999.38x = 1,689,963.92 × 653,829.78
  4. Step 4: Simplify right side
    1,126,999.38x = 1,104,948,738,021.54
  5. Step 5: Solve for x
    x = 1,104,948,738,021.54/1,126,999.38
  6. Step 6: Final answer
    x = 980,434.20

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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.