Home / 667,561.91-1,001,471.76-218,161.55

Finding the Fourth Proportional to 667,561.91, 1,001,471.76 and 218,161.55

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Solution

The fourth proportional to 667,561.91, 1,001,471.76 and 218,161.55 is: 327,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,561.91 : 1,001,471.76 = 218,161.55 : x
  2. Step 2: Convert to fraction form
    667,561.91/1,001,471.76 = 218,161.55/x
  3. Step 3: Cross multiply
    667,561.91x = 1,001,471.76 × 218,161.55
  4. Step 4: Simplify right side
    667,561.91x = 218,482,631,442.83
  5. Step 5: Solve for x
    x = 218,482,631,442.83/667,561.91
  6. Step 6: Final answer
    x = 327,284.45

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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.