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Finding the Fourth Proportional to 598.15, 890.90 and 571.49

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Solution

The fourth proportional to 598.15, 890.90 and 571.49 is: 851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.15 : 890.90 = 571.49 : x
  2. Step 2: Convert to fraction form
    598.15/890.90 = 571.49/x
  3. Step 3: Cross multiply
    598.15x = 890.90 × 571.49
  4. Step 4: Simplify right side
    598.15x = 509,140.44
  5. Step 5: Solve for x
    x = 509,140.44/598.15
  6. Step 6: Final answer
    x = 851.19

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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.