Home / 1,108,138.13-1,662,207.55-266,689.88

Finding the Fourth Proportional to 1,108,138.13, 1,662,207.55 and 266,689.88

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Solution

The fourth proportional to 1,108,138.13, 1,662,207.55 and 266,689.88 is: 400,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,138.13 : 1,662,207.55 = 266,689.88 : x
  2. Step 2: Convert to fraction form
    1,108,138.13/1,662,207.55 = 266,689.88/x
  3. Step 3: Cross multiply
    1,108,138.13x = 1,662,207.55 × 266,689.88
  4. Step 4: Simplify right side
    1,108,138.13x = 443,293,929,300.11
  5. Step 5: Solve for x
    x = 443,293,929,300.11/1,108,138.13
  6. Step 6: Final answer
    x = 400,034.90

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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.