Home / 1,389,494.70-2,084,242.05-491,949.90

Finding the Fourth Proportional to 1,389,494.70, 2,084,242.05 and 491,949.90

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Solution

The fourth proportional to 1,389,494.70, 2,084,242.05 and 491,949.90 is: 737,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,494.70 : 2,084,242.05 = 491,949.90 : x
  2. Step 2: Convert to fraction form
    1,389,494.70/2,084,242.05 = 491,949.90/x
  3. Step 3: Cross multiply
    1,389,494.70x = 2,084,242.05 × 491,949.90
  4. Step 4: Simplify right side
    1,389,494.70x = 1,025,342,668,073.30
  5. Step 5: Solve for x
    x = 1,025,342,668,073.30/1,389,494.70
  6. Step 6: Final answer
    x = 737,924.85

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Double scale
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Similar ratio
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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.