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Finding the Fourth Proportional to 882.75, 1,218.36 and 568.11

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Solution

The fourth proportional to 882.75, 1,218.36 and 568.11 is: 784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.75 : 1,218.36 = 568.11 : x
  2. Step 2: Convert to fraction form
    882.75/1,218.36 = 568.11/x
  3. Step 3: Cross multiply
    882.75x = 1,218.36 × 568.11
  4. Step 4: Simplify right side
    882.75x = 692,162.50
  5. Step 5: Solve for x
    x = 692,162.50/882.75
  6. Step 6: Final answer
    x = 784.10

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.