Home / 859,997.12-1,289,998.52-260,963.24

Finding the Fourth Proportional to 859,997.12, 1,289,998.52 and 260,963.24

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Solution

The fourth proportional to 859,997.12, 1,289,998.52 and 260,963.24 is: 391,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,997.12 : 1,289,998.52 = 260,963.24 : x
  2. Step 2: Convert to fraction form
    859,997.12/1,289,998.52 = 260,963.24/x
  3. Step 3: Cross multiply
    859,997.12x = 1,289,998.52 × 260,963.24
  4. Step 4: Simplify right side
    859,997.12x = 336,642,193,374.41
  5. Step 5: Solve for x
    x = 336,642,193,374.41/859,997.12
  6. Step 6: Final answer
    x = 391,445.72

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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.