Home / 1,238,101.80-1,708,451.46-728,773.80

Finding the Fourth Proportional to 1,238,101.80, 1,708,451.46 and 728,773.80

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Solution

The fourth proportional to 1,238,101.80, 1,708,451.46 and 728,773.80 is: 1,005,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,101.80 : 1,708,451.46 = 728,773.80 : x
  2. Step 2: Convert to fraction form
    1,238,101.80/1,708,451.46 = 728,773.80/x
  3. Step 3: Cross multiply
    1,238,101.80x = 1,708,451.46 × 728,773.80
  4. Step 4: Simplify right side
    1,238,101.80x = 1,245,074,662,619.75
  5. Step 5: Solve for x
    x = 1,245,074,662,619.75/1,238,101.80
  6. Step 6: Final answer
    x = 1,005,631.90

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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.