Home / 1,265,077.12-1,745,883.84-728,705.92

Finding the Fourth Proportional to 1,265,077.12, 1,745,883.84 and 728,705.92

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Solution

The fourth proportional to 1,265,077.12, 1,745,883.84 and 728,705.92 is: 1,005,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,077.12 : 1,745,883.84 = 728,705.92 : x
  2. Step 2: Convert to fraction form
    1,265,077.12/1,745,883.84 = 728,705.92/x
  3. Step 3: Cross multiply
    1,265,077.12x = 1,745,883.84 × 728,705.92
  4. Step 4: Simplify right side
    1,265,077.12x = 1,272,235,889,840.33
  5. Step 5: Solve for x
    x = 1,272,235,889,840.33/1,265,077.12
  6. Step 6: Final answer
    x = 1,005,658.76

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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.