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Finding the Fourth Proportional to 899.88, 1,241.84 and 589.38

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Solution

The fourth proportional to 899.88, 1,241.84 and 589.38 is: 813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.88 : 1,241.84 = 589.38 : x
  2. Step 2: Convert to fraction form
    899.88/1,241.84 = 589.38/x
  3. Step 3: Cross multiply
    899.88x = 1,241.84 × 589.38
  4. Step 4: Simplify right side
    899.88x = 731,915.66
  5. Step 5: Solve for x
    x = 731,915.66/899.88
  6. Step 6: Final answer
    x = 813.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.