Home / 859,822.54-1,289,736.92-260,788.89

Finding the Fourth Proportional to 859,822.54, 1,289,736.92 and 260,788.89

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Solution

The fourth proportional to 859,822.54, 1,289,736.92 and 260,788.89 is: 391,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,822.54 : 1,289,736.92 = 260,788.89 : x
  2. Step 2: Convert to fraction form
    859,822.54/1,289,736.92 = 260,788.89/x
  3. Step 3: Cross multiply
    859,822.54x = 1,289,736.92 × 260,788.89
  4. Step 4: Simplify right side
    859,822.54x = 336,349,059,758.82
  5. Step 5: Solve for x
    x = 336,349,059,758.82/859,822.54
  6. Step 6: Final answer
    x = 391,184.28

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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.