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Finding the Fourth Proportional to 619.24, 933.16 and 613.72

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Solution

The fourth proportional to 619.24, 933.16 and 613.72 is: 924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.24 : 933.16 = 613.72 : x
  2. Step 2: Convert to fraction form
    619.24/933.16 = 613.72/x
  3. Step 3: Cross multiply
    619.24x = 933.16 × 613.72
  4. Step 4: Simplify right side
    619.24x = 572,698.96
  5. Step 5: Solve for x
    x = 572,698.96/619.24
  6. Step 6: Final answer
    x = 924.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.