Home / 1,202,129.40-1,803,194.10-491,921.40

Finding the Fourth Proportional to 1,202,129.40, 1,803,194.10 and 491,921.40

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Solution

The fourth proportional to 1,202,129.40, 1,803,194.10 and 491,921.40 is: 737,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,129.40 : 1,803,194.10 = 491,921.40 : x
  2. Step 2: Convert to fraction form
    1,202,129.40/1,803,194.10 = 491,921.40/x
  3. Step 3: Cross multiply
    1,202,129.40x = 1,803,194.10 × 491,921.40
  4. Step 4: Simplify right side
    1,202,129.40x = 887,029,766,143.74
  5. Step 5: Solve for x
    x = 887,029,766,143.74/1,202,129.40
  6. Step 6: Final answer
    x = 737,882.10

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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.