Home / 1,389,744.70-2,084,617.05-491,179.30

Finding the Fourth Proportional to 1,389,744.70, 2,084,617.05 and 491,179.30

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Solution

The fourth proportional to 1,389,744.70, 2,084,617.05 and 491,179.30 is: 736,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,744.70 : 2,084,617.05 = 491,179.30 : x
  2. Step 2: Convert to fraction form
    1,389,744.70/2,084,617.05 = 491,179.30/x
  3. Step 3: Cross multiply
    1,389,744.70x = 2,084,617.05 × 491,179.30
  4. Step 4: Simplify right side
    1,389,744.70x = 1,023,920,743,387.07
  5. Step 5: Solve for x
    x = 1,023,920,743,387.07/1,389,744.70
  6. Step 6: Final answer
    x = 736,768.95

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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.