Home / 499,519.08-689,127.30-327,478.32

Finding the Fourth Proportional to 499,519.08, 689,127.30 and 327,478.32

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Solution

The fourth proportional to 499,519.08, 689,127.30 and 327,478.32 is: 451,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,519.08 : 689,127.30 = 327,478.32 : x
  2. Step 2: Convert to fraction form
    499,519.08/689,127.30 = 327,478.32/x
  3. Step 3: Cross multiply
    499,519.08x = 689,127.30 × 327,478.32
  4. Step 4: Simplify right side
    499,519.08x = 225,674,250,470.14
  5. Step 5: Solve for x
    x = 225,674,250,470.14/499,519.08
  6. Step 6: Final answer
    x = 451,783.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.