Home / 3,386,218.08-5,079,482.64-861,895.20

Finding the Fourth Proportional to 3,386,218.08, 5,079,482.64 and 861,895.20

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Solution

The fourth proportional to 3,386,218.08, 5,079,482.64 and 861,895.20 is: 1,292,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386,218.08 : 5,079,482.64 = 861,895.20 : x
  2. Step 2: Convert to fraction form
    3,386,218.08/5,079,482.64 = 861,895.20/x
  3. Step 3: Cross multiply
    3,386,218.08x = 5,079,482.64 × 861,895.20
  4. Step 4: Simplify right side
    3,386,218.08x = 4,377,981,705,899.33
  5. Step 5: Solve for x
    x = 4,377,981,705,899.33/3,386,218.08
  6. Step 6: Final answer
    x = 1,292,882.38

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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.