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Finding the Fourth Proportional to 614.84, 915.40 and 606.22

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Solution

The fourth proportional to 614.84, 915.40 and 606.22 is: 902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.84 : 915.40 = 606.22 : x
  2. Step 2: Convert to fraction form
    614.84/915.40 = 606.22/x
  3. Step 3: Cross multiply
    614.84x = 915.40 × 606.22
  4. Step 4: Simplify right side
    614.84x = 554,928.85
  5. Step 5: Solve for x
    x = 554,928.85/614.84
  6. Step 6: Final answer
    x = 902.57

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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.