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Finding the Fourth Proportional to 1,043.85, 1,440.68 and 595.72

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Solution

The fourth proportional to 1,043.85, 1,440.68 and 595.72 is: 822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.85 : 1,440.68 = 595.72 : x
  2. Step 2: Convert to fraction form
    1,043.85/1,440.68 = 595.72/x
  3. Step 3: Cross multiply
    1,043.85x = 1,440.68 × 595.72
  4. Step 4: Simplify right side
    1,043.85x = 858,235.31
  5. Step 5: Solve for x
    x = 858,235.31/1,043.85
  6. Step 6: Final answer
    x = 822.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.