Home / 859,343.88-1,289,081.43-260,354.65

Finding the Fourth Proportional to 859,343.88, 1,289,081.43 and 260,354.65

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Solution

The fourth proportional to 859,343.88, 1,289,081.43 and 260,354.65 is: 390,551.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,343.88 : 1,289,081.43 = 260,354.65 : x
  2. Step 2: Convert to fraction form
    859,343.88/1,289,081.43 = 260,354.65/x
  3. Step 3: Cross multiply
    859,343.88x = 1,289,081.43 × 260,354.65
  4. Step 4: Simplify right side
    859,343.88x = 335,618,343,227.38
  5. Step 5: Solve for x
    x = 335,618,343,227.38/859,343.88
  6. Step 6: Final answer
    x = 390,551.85

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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.