Home / 728,140.52-1,092,209.83-195,661.55

Finding the Fourth Proportional to 728,140.52, 1,092,209.83 and 195,661.55

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Solution

The fourth proportional to 728,140.52, 1,092,209.83 and 195,661.55 is: 293,492.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,140.52 : 1,092,209.83 = 195,661.55 : x
  2. Step 2: Convert to fraction form
    728,140.52/1,092,209.83 = 195,661.55/x
  3. Step 3: Cross multiply
    728,140.52x = 1,092,209.83 × 195,661.55
  4. Step 4: Simplify right side
    728,140.52x = 213,703,471,238.14
  5. Step 5: Solve for x
    x = 213,703,471,238.14/728,140.52
  6. Step 6: Final answer
    x = 293,492.08

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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.