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Finding the Fourth Proportional to 839.04, 1,159.05 and 607.38

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Solution

The fourth proportional to 839.04, 1,159.05 and 607.38 is: 839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    839.04 : 1,159.05 = 607.38 : x
  2. Step 2: Convert to fraction form
    839.04/1,159.05 = 607.38/x
  3. Step 3: Cross multiply
    839.04x = 1,159.05 × 607.38
  4. Step 4: Simplify right side
    839.04x = 703,983.79
  5. Step 5: Solve for x
    x = 703,983.79/839.04
  6. Step 6: Final answer
    x = 839.03

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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.