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Finding the Fourth Proportional to 600.71, 900.45 and 435.78

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Solution

The fourth proportional to 600.71, 900.45 and 435.78 is: 653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.71 : 900.45 = 435.78 : x
  2. Step 2: Convert to fraction form
    600.71/900.45 = 435.78/x
  3. Step 3: Cross multiply
    600.71x = 900.45 × 435.78
  4. Step 4: Simplify right side
    600.71x = 392,398.10
  5. Step 5: Solve for x
    x = 392,398.10/600.71
  6. Step 6: Final answer
    x = 653.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.