Home / 1,272,407.73-1,755,878.10-699,443.79

Finding the Fourth Proportional to 1,272,407.73, 1,755,878.10 and 699,443.79

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Solution

The fourth proportional to 1,272,407.73, 1,755,878.10 and 699,443.79 is: 965,207.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,407.73 : 1,755,878.10 = 699,443.79 : x
  2. Step 2: Convert to fraction form
    1,272,407.73/1,755,878.10 = 699,443.79/x
  3. Step 3: Cross multiply
    1,272,407.73x = 1,755,878.10 × 699,443.79
  4. Step 4: Simplify right side
    1,272,407.73x = 1,228,138,033,042.00
  5. Step 5: Solve for x
    x = 1,228,138,033,042.00/1,272,407.73
  6. Step 6: Final answer
    x = 965,207.93

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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.