Home / 826,521.75-1,239,782.67-327,885.75

Finding the Fourth Proportional to 826,521.75, 1,239,782.67 and 327,885.75

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Solution

The fourth proportional to 826,521.75, 1,239,782.67 and 327,885.75 is: 491,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,521.75 : 1,239,782.67 = 327,885.75 : x
  2. Step 2: Convert to fraction form
    826,521.75/1,239,782.67 = 327,885.75/x
  3. Step 3: Cross multiply
    826,521.75x = 1,239,782.67 × 327,885.75
  4. Step 4: Simplify right side
    826,521.75x = 406,507,070,589.95
  5. Step 5: Solve for x
    x = 406,507,070,589.95/826,521.75
  6. Step 6: Final answer
    x = 491,828.64

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1.5x scale

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.