Home / 667,381.41-1,000,862.96-217,999.89

Finding the Fourth Proportional to 667,381.41, 1,000,862.96 and 217,999.89

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Solution

The fourth proportional to 667,381.41, 1,000,862.96 and 217,999.89 is: 326,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,381.41 : 1,000,862.96 = 217,999.89 : x
  2. Step 2: Convert to fraction form
    667,381.41/1,000,862.96 = 217,999.89/x
  3. Step 3: Cross multiply
    667,381.41x = 1,000,862.96 × 217,999.89
  4. Step 4: Simplify right side
    667,381.41x = 218,188,014,095.08
  5. Step 5: Solve for x
    x = 218,188,014,095.08/667,381.41
  6. Step 6: Final answer
    x = 326,931.51

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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.