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Finding the Fourth Proportional to 612.28, 844.32 and 544.78

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Solution

The fourth proportional to 612.28, 844.32 and 544.78 is: 751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.28 : 844.32 = 544.78 : x
  2. Step 2: Convert to fraction form
    612.28/844.32 = 544.78/x
  3. Step 3: Cross multiply
    612.28x = 844.32 × 544.78
  4. Step 4: Simplify right side
    612.28x = 459,967.00
  5. Step 5: Solve for x
    x = 459,967.00/612.28
  6. Step 6: Final answer
    x = 751.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.