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Finding the Fourth Proportional to 1,594.55, 2,391.95 and 440.30

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Solution

The fourth proportional to 1,594.55, 2,391.95 and 440.30 is: 660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.55 : 2,391.95 = 440.30 : x
  2. Step 2: Convert to fraction form
    1,594.55/2,391.95 = 440.30/x
  3. Step 3: Cross multiply
    1,594.55x = 2,391.95 × 440.30
  4. Step 4: Simplify right side
    1,594.55x = 1,053,182.67
  5. Step 5: Solve for x
    x = 1,053,182.67/1,594.55
  6. Step 6: Final answer
    x = 660.49

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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.