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Finding the Fourth Proportional to 614.72, 916.78 and 606.48

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Solution

The fourth proportional to 614.72, 916.78 and 606.48 is: 904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.72 : 916.78 = 606.48 : x
  2. Step 2: Convert to fraction form
    614.72/916.78 = 606.48/x
  3. Step 3: Cross multiply
    614.72x = 916.78 × 606.48
  4. Step 4: Simplify right side
    614.72x = 556,008.73
  5. Step 5: Solve for x
    x = 556,008.73/614.72
  6. Step 6: Final answer
    x = 904.49

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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.