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Finding the Fourth Proportional to 588.50, 883.69 and 485.56

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Solution

The fourth proportional to 588.50, 883.69 and 485.56 is: 729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.50 : 883.69 = 485.56 : x
  2. Step 2: Convert to fraction form
    588.50/883.69 = 485.56/x
  3. Step 3: Cross multiply
    588.50x = 883.69 × 485.56
  4. Step 4: Simplify right side
    588.50x = 429,077.67
  5. Step 5: Solve for x
    x = 429,077.67/588.50
  6. Step 6: Final answer
    x = 729.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.