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Finding the Fourth Proportional to 612.54, 846.58 and 579.74

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Solution

The fourth proportional to 612.54, 846.58 and 579.74 is: 801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.54 : 846.58 = 579.74 : x
  2. Step 2: Convert to fraction form
    612.54/846.58 = 579.74/x
  3. Step 3: Cross multiply
    612.54x = 846.58 × 579.74
  4. Step 4: Simplify right side
    612.54x = 490,796.29
  5. Step 5: Solve for x
    x = 490,796.29/612.54
  6. Step 6: Final answer
    x = 801.25

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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.