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Finding the Fourth Proportional to 912.63, 1,259.04 and 593.49

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Solution

The fourth proportional to 912.63, 1,259.04 and 593.49 is: 818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.63 : 1,259.04 = 593.49 : x
  2. Step 2: Convert to fraction form
    912.63/1,259.04 = 593.49/x
  3. Step 3: Cross multiply
    912.63x = 1,259.04 × 593.49
  4. Step 4: Simplify right side
    912.63x = 747,227.65
  5. Step 5: Solve for x
    x = 747,227.65/912.63
  6. Step 6: Final answer
    x = 818.76

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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.