Home / 1,043.07-1,563.99-393.85

Finding the Fourth Proportional to 1,043.07, 1,563.99 and 393.85

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Solution

The fourth proportional to 1,043.07, 1,563.99 and 393.85 is: 590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.07 : 1,563.99 = 393.85 : x
  2. Step 2: Convert to fraction form
    1,043.07/1,563.99 = 393.85/x
  3. Step 3: Cross multiply
    1,043.07x = 1,563.99 × 393.85
  4. Step 4: Simplify right side
    1,043.07x = 615,977.46
  5. Step 5: Solve for x
    x = 615,977.46/1,043.07
  6. Step 6: Final answer
    x = 590.54

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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.