Home / 578,907.12-868,389.48-179,819.76

Finding the Fourth Proportional to 578,907.12, 868,389.48 and 179,819.76

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Solution

The fourth proportional to 578,907.12, 868,389.48 and 179,819.76 is: 269,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,907.12 : 868,389.48 = 179,819.76 : x
  2. Step 2: Convert to fraction form
    578,907.12/868,389.48 = 179,819.76/x
  3. Step 3: Cross multiply
    578,907.12x = 868,389.48 × 179,819.76
  4. Step 4: Simplify right side
    578,907.12x = 156,153,587,880.13
  5. Step 5: Solve for x
    x = 156,153,587,880.13/578,907.12
  6. Step 6: Final answer
    x = 269,738.59

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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.