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Finding the Fourth Proportional to 549.66, 818.62 and 530.52

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Solution

The fourth proportional to 549.66, 818.62 and 530.52 is: 790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.66 : 818.62 = 530.52 : x
  2. Step 2: Convert to fraction form
    549.66/818.62 = 530.52/x
  3. Step 3: Cross multiply
    549.66x = 818.62 × 530.52
  4. Step 4: Simplify right side
    549.66x = 434,294.28
  5. Step 5: Solve for x
    x = 434,294.28/549.66
  6. Step 6: Final answer
    x = 790.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.