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Finding the Fourth Proportional to 716.26, 986.16 and 632.17

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Solution

The fourth proportional to 716.26, 986.16 and 632.17 is: 870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.26 : 986.16 = 632.17 : x
  2. Step 2: Convert to fraction form
    716.26/986.16 = 632.17/x
  3. Step 3: Cross multiply
    716.26x = 986.16 × 632.17
  4. Step 4: Simplify right side
    716.26x = 623,420.77
  5. Step 5: Solve for x
    x = 623,420.77/716.26
  6. Step 6: Final answer
    x = 870.38

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.