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Finding the Fourth Proportional to 601.99, 830.84 and 436.15

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Solution

The fourth proportional to 601.99, 830.84 and 436.15 is: 601.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.99 : 830.84 = 436.15 : x
  2. Step 2: Convert to fraction form
    601.99/830.84 = 436.15/x
  3. Step 3: Cross multiply
    601.99x = 830.84 × 436.15
  4. Step 4: Simplify right side
    601.99x = 362,370.87
  5. Step 5: Solve for x
    x = 362,370.87/601.99
  6. Step 6: Final answer
    x = 601.95

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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.