Home / 667,147.42-1,000,782.65-217,870.62

Finding the Fourth Proportional to 667,147.42, 1,000,782.65 and 217,870.62

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Solution

The fourth proportional to 667,147.42, 1,000,782.65 and 217,870.62 is: 326,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,147.42 : 1,000,782.65 = 217,870.62 : x
  2. Step 2: Convert to fraction form
    667,147.42/1,000,782.65 = 217,870.62/x
  3. Step 3: Cross multiply
    667,147.42x = 1,000,782.65 × 217,870.62
  4. Step 4: Simplify right side
    667,147.42x = 218,041,136,440.74
  5. Step 5: Solve for x
    x = 218,041,136,440.74/667,147.42
  6. Step 6: Final answer
    x = 326,826.02

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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.