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Finding the Fourth Proportional to 609.72, 909.84 and 595.08

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Solution

The fourth proportional to 609.72, 909.84 and 595.08 is: 887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.72 : 909.84 = 595.08 : x
  2. Step 2: Convert to fraction form
    609.72/909.84 = 595.08/x
  3. Step 3: Cross multiply
    609.72x = 909.84 × 595.08
  4. Step 4: Simplify right side
    609.72x = 541,427.59
  5. Step 5: Solve for x
    x = 541,427.59/609.72
  6. Step 6: Final answer
    x = 887.99

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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.