Home / 823,155.44-1,234,780.96-317,719.28

Finding the Fourth Proportional to 823,155.44, 1,234,780.96 and 317,719.28

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Solution

The fourth proportional to 823,155.44, 1,234,780.96 and 317,719.28 is: 476,597.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,155.44 : 1,234,780.96 = 317,719.28 : x
  2. Step 2: Convert to fraction form
    823,155.44/1,234,780.96 = 317,719.28/x
  3. Step 3: Cross multiply
    823,155.44x = 1,234,780.96 × 317,719.28
  4. Step 4: Simplify right side
    823,155.44x = 392,313,717,568.91
  5. Step 5: Solve for x
    x = 392,313,717,568.91/823,155.44
  6. Step 6: Final answer
    x = 476,597.37

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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.