Home / 2,098,084.78-3,147,127.17-678,140.86

Finding the Fourth Proportional to 2,098,084.78, 3,147,127.17 and 678,140.86

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Solution

The fourth proportional to 2,098,084.78, 3,147,127.17 and 678,140.86 is: 1,017,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098,084.78 : 3,147,127.17 = 678,140.86 : x
  2. Step 2: Convert to fraction form
    2,098,084.78/3,147,127.17 = 678,140.86/x
  3. Step 3: Cross multiply
    2,098,084.78x = 3,147,127.17 × 678,140.86
  4. Step 4: Simplify right side
    2,098,084.78x = 2,134,195,524,897.73
  5. Step 5: Solve for x
    x = 2,134,195,524,897.73/2,098,084.78
  6. Step 6: Final answer
    x = 1,017,211.29

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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.