Home / 1,386,967.25-2,080,657.67-427,342.57

Finding the Fourth Proportional to 1,386,967.25, 2,080,657.67 and 427,342.57

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Solution

The fourth proportional to 1,386,967.25, 2,080,657.67 and 427,342.57 is: 641,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,967.25 : 2,080,657.67 = 427,342.57 : x
  2. Step 2: Convert to fraction form
    1,386,967.25/2,080,657.67 = 427,342.57/x
  3. Step 3: Cross multiply
    1,386,967.25x = 2,080,657.67 × 427,342.57
  4. Step 4: Simplify right side
    1,386,967.25x = 889,153,588,649.66
  5. Step 5: Solve for x
    x = 889,153,588,649.66/1,386,967.25
  6. Step 6: Final answer
    x = 641,077.56

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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.