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Finding the Fourth Proportional to 619.77, 923.19 and 591.69

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Solution

The fourth proportional to 619.77, 923.19 and 591.69 is: 881.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.77 : 923.19 = 591.69 : x
  2. Step 2: Convert to fraction form
    619.77/923.19 = 591.69/x
  3. Step 3: Cross multiply
    619.77x = 923.19 × 591.69
  4. Step 4: Simplify right side
    619.77x = 546,242.29
  5. Step 5: Solve for x
    x = 546,242.29/619.77
  6. Step 6: Final answer
    x = 881.36

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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.