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Finding the Fourth Proportional to 483.91, 722.07 and 454.53

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Solution

The fourth proportional to 483.91, 722.07 and 454.53 is: 678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.91 : 722.07 = 454.53 : x
  2. Step 2: Convert to fraction form
    483.91/722.07 = 454.53/x
  3. Step 3: Cross multiply
    483.91x = 722.07 × 454.53
  4. Step 4: Simplify right side
    483.91x = 328,202.48
  5. Step 5: Solve for x
    x = 328,202.48/483.91
  6. Step 6: Final answer
    x = 678.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.