Home / 979,643.80-1,469,465.70-269,781.40

Finding the Fourth Proportional to 979,643.80, 1,469,465.70 and 269,781.40

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Solution

The fourth proportional to 979,643.80, 1,469,465.70 and 269,781.40 is: 404,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,643.80 : 1,469,465.70 = 269,781.40 : x
  2. Step 2: Convert to fraction form
    979,643.80/1,469,465.70 = 269,781.40/x
  3. Step 3: Cross multiply
    979,643.80x = 1,469,465.70 × 269,781.40
  4. Step 4: Simplify right side
    979,643.80x = 396,434,513,797.98
  5. Step 5: Solve for x
    x = 396,434,513,797.98/979,643.80
  6. Step 6: Final answer
    x = 404,672.10

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Similar ratio
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1.5x scale

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.