Home / 1,386,968.25-2,080,659.17-427,343.57

Finding the Fourth Proportional to 1,386,968.25, 2,080,659.17 and 427,343.57

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Solution

The fourth proportional to 1,386,968.25, 2,080,659.17 and 427,343.57 is: 641,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,968.25 : 2,080,659.17 = 427,343.57 : x
  2. Step 2: Convert to fraction form
    1,386,968.25/2,080,659.17 = 427,343.57/x
  3. Step 3: Cross multiply
    1,386,968.25x = 2,080,659.17 × 427,343.57
  4. Step 4: Simplify right side
    1,386,968.25x = 889,156,317,661.04
  5. Step 5: Solve for x
    x = 889,156,317,661.04/1,386,968.25
  6. Step 6: Final answer
    x = 641,079.07

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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.