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Finding the Fourth Proportional to 942.84, 1,301.07 and 549.99

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Solution

The fourth proportional to 942.84, 1,301.07 and 549.99 is: 758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.84 : 1,301.07 = 549.99 : x
  2. Step 2: Convert to fraction form
    942.84/1,301.07 = 549.99/x
  3. Step 3: Cross multiply
    942.84x = 1,301.07 × 549.99
  4. Step 4: Simplify right side
    942.84x = 715,575.49
  5. Step 5: Solve for x
    x = 715,575.49/942.84
  6. Step 6: Final answer
    x = 758.96

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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.