Home / 1,272,562.56-1,756,174.56-728,873.76

Finding the Fourth Proportional to 1,272,562.56, 1,756,174.56 and 728,873.76

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Solution

The fourth proportional to 1,272,562.56, 1,756,174.56 and 728,873.76 is: 1,005,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,562.56 : 1,756,174.56 = 728,873.76 : x
  2. Step 2: Convert to fraction form
    1,272,562.56/1,756,174.56 = 728,873.76/x
  3. Step 3: Cross multiply
    1,272,562.56x = 1,756,174.56 × 728,873.76
  4. Step 4: Simplify right side
    1,272,562.56x = 1,280,029,554,763.55
  5. Step 5: Solve for x
    x = 1,280,029,554,763.55/1,272,562.56
  6. Step 6: Final answer
    x = 1,005,867.68

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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.