Home / 2,919,898.20-4,379,857.56-898,128.48

Finding the Fourth Proportional to 2,919,898.20, 4,379,857.56 and 898,128.48

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Solution

The fourth proportional to 2,919,898.20, 4,379,857.56 and 898,128.48 is: 1,347,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919,898.20 : 4,379,857.56 = 898,128.48 : x
  2. Step 2: Convert to fraction form
    2,919,898.20/4,379,857.56 = 898,128.48/x
  3. Step 3: Cross multiply
    2,919,898.20x = 4,379,857.56 × 898,128.48
  4. Step 4: Simplify right side
    2,919,898.20x = 3,933,674,812,979.31
  5. Step 5: Solve for x
    x = 3,933,674,812,979.31/2,919,898.20
  6. Step 6: Final answer
    x = 1,347,195.88

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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.