Home / 1,280,825.12-1,767,480.59-791,013.66

Finding the Fourth Proportional to 1,280,825.12, 1,767,480.59 and 791,013.66

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Solution

The fourth proportional to 1,280,825.12, 1,767,480.59 and 791,013.66 is: 1,091,562.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,825.12 : 1,767,480.59 = 791,013.66 : x
  2. Step 2: Convert to fraction form
    1,280,825.12/1,767,480.59 = 791,013.66/x
  3. Step 3: Cross multiply
    1,280,825.12x = 1,767,480.59 × 791,013.66
  4. Step 4: Simplify right side
    1,280,825.12x = 1,398,101,290,474.86
  5. Step 5: Solve for x
    x = 1,398,101,290,474.86/1,280,825.12
  6. Step 6: Final answer
    x = 1,091,562.98

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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.