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Finding the Fourth Proportional to 436.84, 599.58 and 389.14

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Solution

The fourth proportional to 436.84, 599.58 and 389.14 is: 534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.84 : 599.58 = 389.14 : x
  2. Step 2: Convert to fraction form
    436.84/599.58 = 389.14/x
  3. Step 3: Cross multiply
    436.84x = 599.58 × 389.14
  4. Step 4: Simplify right side
    436.84x = 233,320.56
  5. Step 5: Solve for x
    x = 233,320.56/436.84
  6. Step 6: Final answer
    x = 534.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.