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Finding the Fourth Proportional to 576,280.20, 864,412.20 and 260,736.60

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Solution

The fourth proportional to 576,280.20, 864,412.20 and 260,736.60 is: 391,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,280.20 : 864,412.20 = 260,736.60 : x
  2. Step 2: Convert to fraction form
    576,280.20/864,412.20 = 260,736.60/x
  3. Step 3: Cross multiply
    576,280.20x = 864,412.20 × 260,736.60
  4. Step 4: Simplify right side
    576,280.20x = 225,383,898,026.52
  5. Step 5: Solve for x
    x = 225,383,898,026.52/576,280.20
  6. Step 6: Final answer
    x = 391,101.24

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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.