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Finding the Fourth Proportional to 619.35, 924.51 and 550.70

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Solution

The fourth proportional to 619.35, 924.51 and 550.70 is: 822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.35 : 924.51 = 550.70 : x
  2. Step 2: Convert to fraction form
    619.35/924.51 = 550.70/x
  3. Step 3: Cross multiply
    619.35x = 924.51 × 550.70
  4. Step 4: Simplify right side
    619.35x = 509,128.57
  5. Step 5: Solve for x
    x = 509,128.57/619.35
  6. Step 6: Final answer
    x = 822.04

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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.