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Finding the Fourth Proportional to 622.92, 860.14 and 424.17

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Solution

The fourth proportional to 622.92, 860.14 and 424.17 is: 585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.92 : 860.14 = 424.17 : x
  2. Step 2: Convert to fraction form
    622.92/860.14 = 424.17/x
  3. Step 3: Cross multiply
    622.92x = 860.14 × 424.17
  4. Step 4: Simplify right side
    622.92x = 364,845.58
  5. Step 5: Solve for x
    x = 364,845.58/622.92
  6. Step 6: Final answer
    x = 585.70

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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.