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Finding the Fourth Proportional to 576,878.80, 865,318.20 and 328,046.80

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Solution

The fourth proportional to 576,878.80, 865,318.20 and 328,046.80 is: 492,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,878.80 : 865,318.20 = 328,046.80 : x
  2. Step 2: Convert to fraction form
    576,878.80/865,318.20 = 328,046.80/x
  3. Step 3: Cross multiply
    576,878.80x = 865,318.20 × 328,046.80
  4. Step 4: Simplify right side
    576,878.80x = 283,864,866,491.76
  5. Step 5: Solve for x
    x = 283,864,866,491.76/576,878.80
  6. Step 6: Final answer
    x = 492,070.20

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Similar ratio
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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.