Home / 1,272,405.73-1,755,875.34-699,441.79

Finding the Fourth Proportional to 1,272,405.73, 1,755,875.34 and 699,441.79

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Solution

The fourth proportional to 1,272,405.73, 1,755,875.34 and 699,441.79 is: 965,205.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,405.73 : 1,755,875.34 = 699,441.79 : x
  2. Step 2: Convert to fraction form
    1,272,405.73/1,755,875.34 = 699,441.79/x
  3. Step 3: Cross multiply
    1,272,405.73x = 1,755,875.34 × 699,441.79
  4. Step 4: Simplify right side
    1,272,405.73x = 1,228,132,590,826.46
  5. Step 5: Solve for x
    x = 1,228,132,590,826.46/1,272,405.73
  6. Step 6: Final answer
    x = 965,205.17

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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.