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Finding the Fourth Proportional to 576,995.40, 865,308.42 and 192,661.74

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Solution

The fourth proportional to 576,995.40, 865,308.42 and 192,661.74 is: 288,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,995.40 : 865,308.42 = 192,661.74 : x
  2. Step 2: Convert to fraction form
    576,995.40/865,308.42 = 192,661.74/x
  3. Step 3: Cross multiply
    576,995.40x = 865,308.42 × 192,661.74
  4. Step 4: Simplify right side
    576,995.40x = 166,711,825,833.85
  5. Step 5: Solve for x
    x = 166,711,825,833.85/576,995.40
  6. Step 6: Final answer
    x = 288,930.94

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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.