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Finding the Fourth Proportional to 620.60, 931.98 and 599

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Solution

The fourth proportional to 620.60, 931.98 and 599 is: 899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.60 : 931.98 = 599 : x
  2. Step 2: Convert to fraction form
    620.60/931.98 = 599/x
  3. Step 3: Cross multiply
    620.60x = 931.98 × 599
  4. Step 4: Simplify right side
    620.60x = 558,256.02
  5. Step 5: Solve for x
    x = 558,256.02/620.60
  6. Step 6: Final answer
    x = 899.54

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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.