Home / 561,455.12-842,464.20-261,959.60

Finding the Fourth Proportional to 561,455.12, 842,464.20 and 261,959.60

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Solution

The fourth proportional to 561,455.12, 842,464.20 and 261,959.60 is: 393,070.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,455.12 : 842,464.20 = 261,959.60 : x
  2. Step 2: Convert to fraction form
    561,455.12/842,464.20 = 261,959.60/x
  3. Step 3: Cross multiply
    561,455.12x = 842,464.20 × 261,959.60
  4. Step 4: Simplify right side
    561,455.12x = 220,691,584,846.32
  5. Step 5: Solve for x
    x = 220,691,584,846.32/561,455.12
  6. Step 6: Final answer
    x = 393,070.75

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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.