Home / 728,126.85-1,092,015.30-372,958.05

Finding the Fourth Proportional to 728,126.85, 1,092,015.30 and 372,958.05

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Solution

The fourth proportional to 728,126.85, 1,092,015.30 and 372,958.05 is: 559,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,126.85 : 1,092,015.30 = 372,958.05 : x
  2. Step 2: Convert to fraction form
    728,126.85/1,092,015.30 = 372,958.05/x
  3. Step 3: Cross multiply
    728,126.85x = 1,092,015.30 × 372,958.05
  4. Step 4: Simplify right side
    728,126.85x = 407,275,896,858.17
  5. Step 5: Solve for x
    x = 407,275,896,858.17/728,126.85
  6. Step 6: Final answer
    x = 559,347.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.