Home / 1,272,391.67-1,755,902.40-699,435.35

Finding the Fourth Proportional to 1,272,391.67, 1,755,902.40 and 699,435.35

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Solution

The fourth proportional to 1,272,391.67, 1,755,902.40 and 699,435.35 is: 965,221.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,391.67 : 1,755,902.40 = 699,435.35 : x
  2. Step 2: Convert to fraction form
    1,272,391.67/1,755,902.40 = 699,435.35/x
  3. Step 3: Cross multiply
    1,272,391.67x = 1,755,902.40 × 699,435.35
  4. Step 4: Simplify right side
    1,272,391.67x = 1,228,140,209,709.84
  5. Step 5: Solve for x
    x = 1,228,140,209,709.84/1,272,391.67
  6. Step 6: Final answer
    x = 965,221.82

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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.