Home / 1,423,125.80-2,129,439.90-1,297,154.60

Finding the Fourth Proportional to 1,423,125.80, 2,129,439.90 and 1,297,154.60

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Solution

The fourth proportional to 1,423,125.80, 2,129,439.90 and 1,297,154.60 is: 1,940,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,125.80 : 2,129,439.90 = 1,297,154.60 : x
  2. Step 2: Convert to fraction form
    1,423,125.80/2,129,439.90 = 1,297,154.60/x
  3. Step 3: Cross multiply
    1,423,125.80x = 2,129,439.90 × 1,297,154.60
  4. Step 4: Simplify right side
    1,423,125.80x = 2,762,212,761,708.54
  5. Step 5: Solve for x
    x = 2,762,212,761,708.54/1,423,125.80
  6. Step 6: Final answer
    x = 1,940,947.71

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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.