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Finding the Fourth Proportional to 601.32, 830.05 and 415.43

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Solution

The fourth proportional to 601.32, 830.05 and 415.43 is: 573.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.32 : 830.05 = 415.43 : x
  2. Step 2: Convert to fraction form
    601.32/830.05 = 415.43/x
  3. Step 3: Cross multiply
    601.32x = 830.05 × 415.43
  4. Step 4: Simplify right side
    601.32x = 344,825.60
  5. Step 5: Solve for x
    x = 344,825.60/601.32
  6. Step 6: Final answer
    x = 573.44

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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.