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Finding the Fourth Proportional to 454.76, 631.01 and 436.48

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Solution

The fourth proportional to 454.76, 631.01 and 436.48 is: 605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.76 : 631.01 = 436.48 : x
  2. Step 2: Convert to fraction form
    454.76/631.01 = 436.48/x
  3. Step 3: Cross multiply
    454.76x = 631.01 × 436.48
  4. Step 4: Simplify right side
    454.76x = 275,423.24
  5. Step 5: Solve for x
    x = 275,423.24/454.76
  6. Step 6: Final answer
    x = 605.65

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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.