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Finding the Fourth Proportional to 612.70, 844.73 and 551.19

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Solution

The fourth proportional to 612.70, 844.73 and 551.19 is: 759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.70 : 844.73 = 551.19 : x
  2. Step 2: Convert to fraction form
    612.70/844.73 = 551.19/x
  3. Step 3: Cross multiply
    612.70x = 844.73 × 551.19
  4. Step 4: Simplify right side
    612.70x = 465,608.02
  5. Step 5: Solve for x
    x = 465,608.02/612.70
  6. Step 6: Final answer
    x = 759.93

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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.