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Finding the Fourth Proportional to 618.60, 926.06 and 374.39

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Solution

The fourth proportional to 618.60, 926.06 and 374.39 is: 560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.60 : 926.06 = 374.39 : x
  2. Step 2: Convert to fraction form
    618.60/926.06 = 374.39/x
  3. Step 3: Cross multiply
    618.60x = 926.06 × 374.39
  4. Step 4: Simplify right side
    618.60x = 346,707.60
  5. Step 5: Solve for x
    x = 346,707.60/618.60
  6. Step 6: Final answer
    x = 560.47

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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.