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Finding the Fourth Proportional to 607.67, 839.61 and 592.11

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Solution

The fourth proportional to 607.67, 839.61 and 592.11 is: 818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.67 : 839.61 = 592.11 : x
  2. Step 2: Convert to fraction form
    607.67/839.61 = 592.11/x
  3. Step 3: Cross multiply
    607.67x = 839.61 × 592.11
  4. Step 4: Simplify right side
    607.67x = 497,141.48
  5. Step 5: Solve for x
    x = 497,141.48/607.67
  6. Step 6: Final answer
    x = 818.12

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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.