Home / 578,485.06-868,287.34-279,176.34

Finding the Fourth Proportional to 578,485.06, 868,287.34 and 279,176.34

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Solution

The fourth proportional to 578,485.06, 868,287.34 and 279,176.34 is: 419,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,485.06 : 868,287.34 = 279,176.34 : x
  2. Step 2: Convert to fraction form
    578,485.06/868,287.34 = 279,176.34/x
  3. Step 3: Cross multiply
    578,485.06x = 868,287.34 × 279,176.34
  4. Step 4: Simplify right side
    578,485.06x = 242,405,281,649.54
  5. Step 5: Solve for x
    x = 242,405,281,649.54/578,485.06
  6. Step 6: Final answer
    x = 419,034.64

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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.