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Finding the Fourth Proportional to 605.44, 912.59 and 553.50

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Solution

The fourth proportional to 605.44, 912.59 and 553.50 is: 834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.44 : 912.59 = 553.50 : x
  2. Step 2: Convert to fraction form
    605.44/912.59 = 553.50/x
  3. Step 3: Cross multiply
    605.44x = 912.59 × 553.50
  4. Step 4: Simplify right side
    605.44x = 505,118.57
  5. Step 5: Solve for x
    x = 505,118.57/605.44
  6. Step 6: Final answer
    x = 834.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.