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Finding the Fourth Proportional to 562.69, 776.69 and 480.61

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Solution

The fourth proportional to 562.69, 776.69 and 480.61 is: 663.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.69 : 776.69 = 480.61 : x
  2. Step 2: Convert to fraction form
    562.69/776.69 = 480.61/x
  3. Step 3: Cross multiply
    562.69x = 776.69 × 480.61
  4. Step 4: Simplify right side
    562.69x = 373,284.98
  5. Step 5: Solve for x
    x = 373,284.98/562.69
  6. Step 6: Final answer
    x = 663.39

Related Problems

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Double scale
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1.5x scale

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.