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Finding the Fourth Proportional to 652, 977.82 and 549.34

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Solution

The fourth proportional to 652, 977.82 and 549.34 is: 823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    652 : 977.82 = 549.34 : x
  2. Step 2: Convert to fraction form
    652/977.82 = 549.34/x
  3. Step 3: Cross multiply
    652x = 977.82 × 549.34
  4. Step 4: Simplify right side
    652x = 537,155.64
  5. Step 5: Solve for x
    x = 537,155.64/652
  6. Step 6: Final answer
    x = 823.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.