Home / 1,207,995.16-1,667,034.38-664,140.20

Finding the Fourth Proportional to 1,207,995.16, 1,667,034.38 and 664,140.20

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Solution

The fourth proportional to 1,207,995.16, 1,667,034.38 and 664,140.20 is: 916,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,995.16 : 1,667,034.38 = 664,140.20 : x
  2. Step 2: Convert to fraction form
    1,207,995.16/1,667,034.38 = 664,140.20/x
  3. Step 3: Cross multiply
    1,207,995.16x = 1,667,034.38 × 664,140.20
  4. Step 4: Simplify right side
    1,207,995.16x = 1,107,144,546,540.08
  5. Step 5: Solve for x
    x = 1,107,144,546,540.08/1,207,995.16
  6. Step 6: Final answer
    x = 916,514.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.