Home / 728,154.60-1,091,373.80-328,327.24

Finding the Fourth Proportional to 728,154.60, 1,091,373.80 and 328,327.24

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Solution

The fourth proportional to 728,154.60, 1,091,373.80 and 328,327.24 is: 492,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,154.60 : 1,091,373.80 = 328,327.24 : x
  2. Step 2: Convert to fraction form
    728,154.60/1,091,373.80 = 328,327.24/x
  3. Step 3: Cross multiply
    728,154.60x = 1,091,373.80 × 328,327.24
  4. Step 4: Simplify right side
    728,154.60x = 358,327,747,562.31
  5. Step 5: Solve for x
    x = 358,327,747,562.31/728,154.60
  6. Step 6: Final answer
    x = 492,103.94

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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.