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Finding the Fourth Proportional to 618.58, 926.63 and 294.26

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Solution

The fourth proportional to 618.58, 926.63 and 294.26 is: 440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.58 : 926.63 = 294.26 : x
  2. Step 2: Convert to fraction form
    618.58/926.63 = 294.26/x
  3. Step 3: Cross multiply
    618.58x = 926.63 × 294.26
  4. Step 4: Simplify right side
    618.58x = 272,670.14
  5. Step 5: Solve for x
    x = 272,670.14/618.58
  6. Step 6: Final answer
    x = 440.80

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1.5x scale

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.