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Finding the Fourth Proportional to 609.04, 914.10 and 573.40

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Solution

The fourth proportional to 609.04, 914.10 and 573.40 is: 860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.04 : 914.10 = 573.40 : x
  2. Step 2: Convert to fraction form
    609.04/914.10 = 573.40/x
  3. Step 3: Cross multiply
    609.04x = 914.10 × 573.40
  4. Step 4: Simplify right side
    609.04x = 524,144.94
  5. Step 5: Solve for x
    x = 524,144.94/609.04
  6. Step 6: Final answer
    x = 860.61

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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.