Home / 2,147,278.32-3,218,915.16-726,345.60

Finding the Fourth Proportional to 2,147,278.32, 3,218,915.16 and 726,345.60

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Solution

The fourth proportional to 2,147,278.32, 3,218,915.16 and 726,345.60 is: 1,088,841.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,278.32 : 3,218,915.16 = 726,345.60 : x
  2. Step 2: Convert to fraction form
    2,147,278.32/3,218,915.16 = 726,345.60/x
  3. Step 3: Cross multiply
    2,147,278.32x = 3,218,915.16 × 726,345.60
  4. Step 4: Simplify right side
    2,147,278.32x = 2,338,044,863,239.30
  5. Step 5: Solve for x
    x = 2,338,044,863,239.30/2,147,278.32
  6. Step 6: Final answer
    x = 1,088,841.09

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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.