Home / 886,411.20-1,328,061.60-727,780.80

Finding the Fourth Proportional to 886,411.20, 1,328,061.60 and 727,780.80

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Solution

The fourth proportional to 886,411.20, 1,328,061.60 and 727,780.80 is: 1,090,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,411.20 : 1,328,061.60 = 727,780.80 : x
  2. Step 2: Convert to fraction form
    886,411.20/1,328,061.60 = 727,780.80/x
  3. Step 3: Cross multiply
    886,411.20x = 1,328,061.60 × 727,780.80
  4. Step 4: Simplify right side
    886,411.20x = 966,537,733,697.28
  5. Step 5: Solve for x
    x = 966,537,733,697.28/886,411.20
  6. Step 6: Final answer
    x = 1,090,394.32

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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.