Home / 1,272,422.46-1,755,983.43-699,486.78

Finding the Fourth Proportional to 1,272,422.46, 1,755,983.43 and 699,486.78

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Solution

The fourth proportional to 1,272,422.46, 1,755,983.43 and 699,486.78 is: 965,313.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,422.46 : 1,755,983.43 = 699,486.78 : x
  2. Step 2: Convert to fraction form
    1,272,422.46/1,755,983.43 = 699,486.78/x
  3. Step 3: Cross multiply
    1,272,422.46x = 1,755,983.43 × 699,486.78
  4. Step 4: Simplify right side
    1,272,422.46x = 1,228,287,195,184.06
  5. Step 5: Solve for x
    x = 1,228,287,195,184.06/1,272,422.46
  6. Step 6: Final answer
    x = 965,313.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.