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Finding the Fourth Proportional to 576,881.61, 865,404.42 and 177,555.66

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Solution

The fourth proportional to 576,881.61, 865,404.42 and 177,555.66 is: 266,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,881.61 : 865,404.42 = 177,555.66 : x
  2. Step 2: Convert to fraction form
    576,881.61/865,404.42 = 177,555.66/x
  3. Step 3: Cross multiply
    576,881.61x = 865,404.42 × 177,555.66
  4. Step 4: Simplify right side
    576,881.61x = 153,657,452,960.02
  5. Step 5: Solve for x
    x = 153,657,452,960.02/576,881.61
  6. Step 6: Final answer
    x = 266,358.73

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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.