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Finding the Fourth Proportional to 576,495.40, 865,002.30 and 260,789.80

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Solution

The fourth proportional to 576,495.40, 865,002.30 and 260,789.80 is: 391,301.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,495.40 : 865,002.30 = 260,789.80 : x
  2. Step 2: Convert to fraction form
    576,495.40/865,002.30 = 260,789.80/x
  3. Step 3: Cross multiply
    576,495.40x = 865,002.30 × 260,789.80
  4. Step 4: Simplify right side
    576,495.40x = 225,583,776,816.54
  5. Step 5: Solve for x
    x = 225,583,776,816.54/576,495.40
  6. Step 6: Final answer
    x = 391,301.95

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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.