Home / 859,853.38-1,289,783.04-260,819.68

Finding the Fourth Proportional to 859,853.38, 1,289,783.04 and 260,819.68

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Solution

The fourth proportional to 859,853.38, 1,289,783.04 and 260,819.68 is: 391,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,853.38 : 1,289,783.04 = 260,819.68 : x
  2. Step 2: Convert to fraction form
    859,853.38/1,289,783.04 = 260,819.68/x
  3. Step 3: Cross multiply
    859,853.38x = 1,289,783.04 × 260,819.68
  4. Step 4: Simplify right side
    859,853.38x = 336,400,799,762.23
  5. Step 5: Solve for x
    x = 336,400,799,762.23/859,853.38
  6. Step 6: Final answer
    x = 391,230.42

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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.