Home / 666,994.22-1,000,188.59-287,735.61

Finding the Fourth Proportional to 666,994.22, 1,000,188.59 and 287,735.61

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Solution

The fourth proportional to 666,994.22, 1,000,188.59 and 287,735.61 is: 431,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,994.22 : 1,000,188.59 = 287,735.61 : x
  2. Step 2: Convert to fraction form
    666,994.22/1,000,188.59 = 287,735.61/x
  3. Step 3: Cross multiply
    666,994.22x = 1,000,188.59 × 287,735.61
  4. Step 4: Simplify right side
    666,994.22x = 287,789,872,620.01
  5. Step 5: Solve for x
    x = 287,789,872,620.01/666,994.22
  6. Step 6: Final answer
    x = 431,472.82

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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.