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Finding the Fourth Proportional to 459.90, 637.58 and 435.26

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Solution

The fourth proportional to 459.90, 637.58 and 435.26 is: 603.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.90 : 637.58 = 435.26 : x
  2. Step 2: Convert to fraction form
    459.90/637.58 = 435.26/x
  3. Step 3: Cross multiply
    459.90x = 637.58 × 435.26
  4. Step 4: Simplify right side
    459.90x = 277,515.75
  5. Step 5: Solve for x
    x = 277,515.75/459.90
  6. Step 6: Final answer
    x = 603.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.