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Finding the Fourth Proportional to 615.58, 922.01 and 477.54

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Solution

The fourth proportional to 615.58, 922.01 and 477.54 is: 715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.58 : 922.01 = 477.54 : x
  2. Step 2: Convert to fraction form
    615.58/922.01 = 477.54/x
  3. Step 3: Cross multiply
    615.58x = 922.01 × 477.54
  4. Step 4: Simplify right side
    615.58x = 440,296.66
  5. Step 5: Solve for x
    x = 440,296.66/615.58
  6. Step 6: Final answer
    x = 715.25

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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.