Home / 667,643.30-1,000,104.15-414,145.70

Finding the Fourth Proportional to 667,643.30, 1,000,104.15 and 414,145.70

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Solution

The fourth proportional to 667,643.30, 1,000,104.15 and 414,145.70 is: 620,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,643.30 : 1,000,104.15 = 414,145.70 : x
  2. Step 2: Convert to fraction form
    667,643.30/1,000,104.15 = 414,145.70/x
  3. Step 3: Cross multiply
    667,643.30x = 1,000,104.15 × 414,145.70
  4. Step 4: Simplify right side
    667,643.30x = 414,188,833,274.66
  5. Step 5: Solve for x
    x = 414,188,833,274.66/667,643.30
  6. Step 6: Final answer
    x = 620,374.43

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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.