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Finding the Fourth Proportional to 621.93, 928.77 and 590.34

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Solution

The fourth proportional to 621.93, 928.77 and 590.34 is: 881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.93 : 928.77 = 590.34 : x
  2. Step 2: Convert to fraction form
    621.93/928.77 = 590.34/x
  3. Step 3: Cross multiply
    621.93x = 928.77 × 590.34
  4. Step 4: Simplify right side
    621.93x = 548,290.08
  5. Step 5: Solve for x
    x = 548,290.08/621.93
  6. Step 6: Final answer
    x = 881.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.