Home / 1,108,139.13-1,662,209.05-266,690.88

Finding the Fourth Proportional to 1,108,139.13, 1,662,209.05 and 266,690.88

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Solution

The fourth proportional to 1,108,139.13, 1,662,209.05 and 266,690.88 is: 400,036.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,139.13 : 1,662,209.05 = 266,690.88 : x
  2. Step 2: Convert to fraction form
    1,108,139.13/1,662,209.05 = 266,690.88/x
  3. Step 3: Cross multiply
    1,108,139.13x = 1,662,209.05 × 266,690.88
  4. Step 4: Simplify right side
    1,108,139.13x = 443,295,994,288.46
  5. Step 5: Solve for x
    x = 443,295,994,288.46/1,108,139.13
  6. Step 6: Final answer
    x = 400,036.41

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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.