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Finding the Fourth Proportional to 722.16, 995.94 and 500.76

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Solution

The fourth proportional to 722.16, 995.94 and 500.76 is: 690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.16 : 995.94 = 500.76 : x
  2. Step 2: Convert to fraction form
    722.16/995.94 = 500.76/x
  3. Step 3: Cross multiply
    722.16x = 995.94 × 500.76
  4. Step 4: Simplify right side
    722.16x = 498,726.91
  5. Step 5: Solve for x
    x = 498,726.91/722.16
  6. Step 6: Final answer
    x = 690.60

Related Problems

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Half scale
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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.