Home / 859,964.13-1,289,948.94-260,930.25

Finding the Fourth Proportional to 859,964.13, 1,289,948.94 and 260,930.25

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Solution

The fourth proportional to 859,964.13, 1,289,948.94 and 260,930.25 is: 391,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,964.13 : 1,289,948.94 = 260,930.25 : x
  2. Step 2: Convert to fraction form
    859,964.13/1,289,948.94 = 260,930.25/x
  3. Step 3: Cross multiply
    859,964.13x = 1,289,948.94 × 260,930.25
  4. Step 4: Simplify right side
    859,964.13x = 336,586,699,401.44
  5. Step 5: Solve for x
    x = 336,586,699,401.44/859,964.13
  6. Step 6: Final answer
    x = 391,396.21

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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.