Home / 727,540.40-1,091,310.60-651,432.80

Finding the Fourth Proportional to 727,540.40, 1,091,310.60 and 651,432.80

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Solution

The fourth proportional to 727,540.40, 1,091,310.60 and 651,432.80 is: 977,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,540.40 : 1,091,310.60 = 651,432.80 : x
  2. Step 2: Convert to fraction form
    727,540.40/1,091,310.60 = 651,432.80/x
  3. Step 3: Cross multiply
    727,540.40x = 1,091,310.60 × 651,432.80
  4. Step 4: Simplify right side
    727,540.40x = 710,915,519,827.68
  5. Step 5: Solve for x
    x = 710,915,519,827.68/727,540.40
  6. Step 6: Final answer
    x = 977,149.20

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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.