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Finding the Fourth Proportional to 439.42, 607.11 and 435.10

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Solution

The fourth proportional to 439.42, 607.11 and 435.10 is: 601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.42 : 607.11 = 435.10 : x
  2. Step 2: Convert to fraction form
    439.42/607.11 = 435.10/x
  3. Step 3: Cross multiply
    439.42x = 607.11 × 435.10
  4. Step 4: Simplify right side
    439.42x = 264,153.56
  5. Step 5: Solve for x
    x = 264,153.56/439.42
  6. Step 6: Final answer
    x = 601.14

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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.