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Finding the Fourth Proportional to 1,358.65, 2,037.33 and 433.99

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Solution

The fourth proportional to 1,358.65, 2,037.33 and 433.99 is: 650.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.65 : 2,037.33 = 433.99 : x
  2. Step 2: Convert to fraction form
    1,358.65/2,037.33 = 433.99/x
  3. Step 3: Cross multiply
    1,358.65x = 2,037.33 × 433.99
  4. Step 4: Simplify right side
    1,358.65x = 884,180.85
  5. Step 5: Solve for x
    x = 884,180.85/1,358.65
  6. Step 6: Final answer
    x = 650.78

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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.