Home / 1,299,649.68-1,948,760.82-400,842

Finding the Fourth Proportional to 1,299,649.68, 1,948,760.82 and 400,842

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Solution

The fourth proportional to 1,299,649.68, 1,948,760.82 and 400,842 is: 601,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,649.68 : 1,948,760.82 = 400,842 : x
  2. Step 2: Convert to fraction form
    1,299,649.68/1,948,760.82 = 400,842/x
  3. Step 3: Cross multiply
    1,299,649.68x = 1,948,760.82 × 400,842
  4. Step 4: Simplify right side
    1,299,649.68x = 781,145,184,610.44
  5. Step 5: Solve for x
    x = 781,145,184,610.44/1,299,649.68
  6. Step 6: Final answer
    x = 601,042.88

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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.