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Finding the Fourth Proportional to 556.62, 833.72 and 545.55

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Solution

The fourth proportional to 556.62, 833.72 and 545.55 is: 817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.62 : 833.72 = 545.55 : x
  2. Step 2: Convert to fraction form
    556.62/833.72 = 545.55/x
  3. Step 3: Cross multiply
    556.62x = 833.72 × 545.55
  4. Step 4: Simplify right side
    556.62x = 454,833.22
  5. Step 5: Solve for x
    x = 454,833.22/556.62
  6. Step 6: Final answer
    x = 817.13

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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.