Home / 979,854.64-1,469,209.95-380,115.04

Finding the Fourth Proportional to 979,854.64, 1,469,209.95 and 380,115.04

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Solution

The fourth proportional to 979,854.64, 1,469,209.95 and 380,115.04 is: 569,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,854.64 : 1,469,209.95 = 380,115.04 : x
  2. Step 2: Convert to fraction form
    979,854.64/1,469,209.95 = 380,115.04/x
  3. Step 3: Cross multiply
    979,854.64x = 1,469,209.95 × 380,115.04
  4. Step 4: Simplify right side
    979,854.64x = 558,468,798,912.65
  5. Step 5: Solve for x
    x = 558,468,798,912.65/979,854.64
  6. Step 6: Final answer
    x = 569,950.66

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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.