Home / 395,389.20-593,477.46-217,979.76

Finding the Fourth Proportional to 395,389.20, 593,477.46 and 217,979.76

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Solution

The fourth proportional to 395,389.20, 593,477.46 and 217,979.76 is: 327,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,389.20 : 593,477.46 = 217,979.76 : x
  2. Step 2: Convert to fraction form
    395,389.20/593,477.46 = 217,979.76/x
  3. Step 3: Cross multiply
    395,389.20x = 593,477.46 × 217,979.76
  4. Step 4: Simplify right side
    395,389.20x = 129,366,074,296.21
  5. Step 5: Solve for x
    x = 129,366,074,296.21/395,389.20
  6. Step 6: Final answer
    x = 327,186.67

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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.