Home / 2,781,432.47-4,173,572.54-1,324,128.06

Finding the Fourth Proportional to 2,781,432.47, 4,173,572.54 and 1,324,128.06

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Solution

The fourth proportional to 2,781,432.47, 4,173,572.54 and 1,324,128.06 is: 1,986,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,432.47 : 4,173,572.54 = 1,324,128.06 : x
  2. Step 2: Convert to fraction form
    2,781,432.47/4,173,572.54 = 1,324,128.06/x
  3. Step 3: Cross multiply
    2,781,432.47x = 4,173,572.54 × 1,324,128.06
  4. Step 4: Simplify right side
    2,781,432.47x = 5,526,344,506,521.57
  5. Step 5: Solve for x
    x = 5,526,344,506,521.57/2,781,432.47
  6. Step 6: Final answer
    x = 1,986,869.92

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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.