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Finding the Fourth Proportional to 576,284.20, 864,418.20 and 260,740.60

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Solution

The fourth proportional to 576,284.20, 864,418.20 and 260,740.60 is: 391,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,284.20 : 864,418.20 = 260,740.60 : x
  2. Step 2: Convert to fraction form
    576,284.20/864,418.20 = 260,740.60/x
  3. Step 3: Cross multiply
    576,284.20x = 864,418.20 × 260,740.60
  4. Step 4: Simplify right side
    576,284.20x = 225,388,920,118.92
  5. Step 5: Solve for x
    x = 225,388,920,118.92/576,284.20
  6. Step 6: Final answer
    x = 391,107.24

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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.