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Finding the Fourth Proportional to 608.66, 912.98 and 579.14

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Solution

The fourth proportional to 608.66, 912.98 and 579.14 is: 868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.66 : 912.98 = 579.14 : x
  2. Step 2: Convert to fraction form
    608.66/912.98 = 579.14/x
  3. Step 3: Cross multiply
    608.66x = 912.98 × 579.14
  4. Step 4: Simplify right side
    608.66x = 528,740.34
  5. Step 5: Solve for x
    x = 528,740.34/608.66
  6. Step 6: Final answer
    x = 868.70

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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.