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Finding the Fourth Proportional to 626.77, 865.10 and 417.29

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Solution

The fourth proportional to 626.77, 865.10 and 417.29 is: 575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.77 : 865.10 = 417.29 : x
  2. Step 2: Convert to fraction form
    626.77/865.10 = 417.29/x
  3. Step 3: Cross multiply
    626.77x = 865.10 × 417.29
  4. Step 4: Simplify right side
    626.77x = 360,995.49
  5. Step 5: Solve for x
    x = 360,995.49/626.77
  6. Step 6: Final answer
    x = 575.97

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Find fourth proportional to 313.38, 432.55 and 208.65
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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.