Home / 3,646,521.40-5,469,782.10-987,129.40

Finding the Fourth Proportional to 3,646,521.40, 5,469,782.10 and 987,129.40

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Solution

The fourth proportional to 3,646,521.40, 5,469,782.10 and 987,129.40 is: 1,480,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646,521.40 : 5,469,782.10 = 987,129.40 : x
  2. Step 2: Convert to fraction form
    3,646,521.40/5,469,782.10 = 987,129.40/x
  3. Step 3: Cross multiply
    3,646,521.40x = 5,469,782.10 × 987,129.40
  4. Step 4: Simplify right side
    3,646,521.40x = 5,399,382,722,503.74
  5. Step 5: Solve for x
    x = 5,399,382,722,503.74/3,646,521.40
  6. Step 6: Final answer
    x = 1,480,694.10

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Double scale
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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.