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Finding the Fourth Proportional to 619.97, 922.64 and 599.72

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Solution

The fourth proportional to 619.97, 922.64 and 599.72 is: 892.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.97 : 922.64 = 599.72 : x
  2. Step 2: Convert to fraction form
    619.97/922.64 = 599.72/x
  3. Step 3: Cross multiply
    619.97x = 922.64 × 599.72
  4. Step 4: Simplify right side
    619.97x = 553,322.66
  5. Step 5: Solve for x
    x = 553,322.66/619.97
  6. Step 6: Final answer
    x = 892.50

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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.