Home / 1,181,139.38-1,771,990.65-382,421.16

Finding the Fourth Proportional to 1,181,139.38, 1,771,990.65 and 382,421.16

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Solution

The fourth proportional to 1,181,139.38, 1,771,990.65 and 382,421.16 is: 573,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,139.38 : 1,771,990.65 = 382,421.16 : x
  2. Step 2: Convert to fraction form
    1,181,139.38/1,771,990.65 = 382,421.16/x
  3. Step 3: Cross multiply
    1,181,139.38x = 1,771,990.65 × 382,421.16
  4. Step 4: Simplify right side
    1,181,139.38x = 677,646,719,882.15
  5. Step 5: Solve for x
    x = 677,646,719,882.15/1,181,139.38
  6. Step 6: Final answer
    x = 573,722.91

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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.