Home / 1,761,433.20-2,640,302.76-861,632.88

Finding the Fourth Proportional to 1,761,433.20, 2,640,302.76 and 861,632.88

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Solution

The fourth proportional to 1,761,433.20, 2,640,302.76 and 861,632.88 is: 1,291,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,433.20 : 2,640,302.76 = 861,632.88 : x
  2. Step 2: Convert to fraction form
    1,761,433.20/2,640,302.76 = 861,632.88/x
  3. Step 3: Cross multiply
    1,761,433.20x = 2,640,302.76 × 861,632.88
  4. Step 4: Simplify right side
    1,761,433.20x = 2,274,971,671,170.75
  5. Step 5: Solve for x
    x = 2,274,971,671,170.75/1,761,433.20
  6. Step 6: Final answer
    x = 1,291,545.81

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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.