Home / 814,132.85-1,219,657.86-543,444.78

Finding the Fourth Proportional to 814,132.85, 1,219,657.86 and 543,444.78

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Solution

The fourth proportional to 814,132.85, 1,219,657.86 and 543,444.78 is: 814,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,132.85 : 1,219,657.86 = 543,444.78 : x
  2. Step 2: Convert to fraction form
    814,132.85/1,219,657.86 = 543,444.78/x
  3. Step 3: Cross multiply
    814,132.85x = 1,219,657.86 × 543,444.78
  4. Step 4: Simplify right side
    814,132.85x = 662,816,697,402.97
  5. Step 5: Solve for x
    x = 662,816,697,402.97/814,132.85
  6. Step 6: Final answer
    x = 814,138.26

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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.