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Finding the Fourth Proportional to 602.75, 832.07 and 445.70

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Solution

The fourth proportional to 602.75, 832.07 and 445.70 is: 615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.75 : 832.07 = 445.70 : x
  2. Step 2: Convert to fraction form
    602.75/832.07 = 445.70/x
  3. Step 3: Cross multiply
    602.75x = 832.07 × 445.70
  4. Step 4: Simplify right side
    602.75x = 370,853.60
  5. Step 5: Solve for x
    x = 370,853.60/602.75
  6. Step 6: Final answer
    x = 615.27

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Find fourth proportional to 301.38, 416.04 and 222.85
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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.