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Finding the Fourth Proportional to 1,016.76, 1,403.15 and 574.66

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Solution

The fourth proportional to 1,016.76, 1,403.15 and 574.66 is: 793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.76 : 1,403.15 = 574.66 : x
  2. Step 2: Convert to fraction form
    1,016.76/1,403.15 = 574.66/x
  3. Step 3: Cross multiply
    1,016.76x = 1,403.15 × 574.66
  4. Step 4: Simplify right side
    1,016.76x = 806,336.29
  5. Step 5: Solve for x
    x = 806,336.29/1,016.76
  6. Step 6: Final answer
    x = 793.05

Related Problems

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Half scale
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Double scale
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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.