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Finding the Fourth Proportional to 944.84, 1,302.50 and 613.15

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Solution

The fourth proportional to 944.84, 1,302.50 and 613.15 is: 845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.84 : 1,302.50 = 613.15 : x
  2. Step 2: Convert to fraction form
    944.84/1,302.50 = 613.15/x
  3. Step 3: Cross multiply
    944.84x = 1,302.50 × 613.15
  4. Step 4: Simplify right side
    944.84x = 798,627.88
  5. Step 5: Solve for x
    x = 798,627.88/944.84
  6. Step 6: Final answer
    x = 845.25

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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.