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Finding the Fourth Proportional to 612.56, 846.44 and 437.60

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Solution

The fourth proportional to 612.56, 846.44 and 437.60 is: 604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.56 : 846.44 = 437.60 : x
  2. Step 2: Convert to fraction form
    612.56/846.44 = 437.60/x
  3. Step 3: Cross multiply
    612.56x = 846.44 × 437.60
  4. Step 4: Simplify right side
    612.56x = 370,402.14
  5. Step 5: Solve for x
    x = 370,402.14/612.56
  6. Step 6: Final answer
    x = 604.68

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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.