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Finding the Fourth Proportional to 576,287.70, 864,423.45 and 260,744.10

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Solution

The fourth proportional to 576,287.70, 864,423.45 and 260,744.10 is: 391,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,287.70 : 864,423.45 = 260,744.10 : x
  2. Step 2: Convert to fraction form
    576,287.70/864,423.45 = 260,744.10/x
  3. Step 3: Cross multiply
    576,287.70x = 864,423.45 × 260,744.10
  4. Step 4: Simplify right side
    576,287.70x = 225,393,314,489.15
  5. Step 5: Solve for x
    x = 225,393,314,489.15/576,287.70
  6. Step 6: Final answer
    x = 391,112.49

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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.