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Finding the Fourth Proportional to 572.20, 852.98 and 565.72

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Solution

The fourth proportional to 572.20, 852.98 and 565.72 is: 843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.20 : 852.98 = 565.72 : x
  2. Step 2: Convert to fraction form
    572.20/852.98 = 565.72/x
  3. Step 3: Cross multiply
    572.20x = 852.98 × 565.72
  4. Step 4: Simplify right side
    572.20x = 482,547.85
  5. Step 5: Solve for x
    x = 482,547.85/572.20
  6. Step 6: Final answer
    x = 843.32

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.