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Finding the Fourth Proportional to 671.93, 926.84 and 423.04

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Solution

The fourth proportional to 671.93, 926.84 and 423.04 is: 583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.93 : 926.84 = 423.04 : x
  2. Step 2: Convert to fraction form
    671.93/926.84 = 423.04/x
  3. Step 3: Cross multiply
    671.93x = 926.84 × 423.04
  4. Step 4: Simplify right side
    671.93x = 392,083.64
  5. Step 5: Solve for x
    x = 392,083.64/671.93
  6. Step 6: Final answer
    x = 583.52

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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.