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Finding the Fourth Proportional to 480.36, 715.59 and 450.48

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Solution

The fourth proportional to 480.36, 715.59 and 450.48 is: 671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.36 : 715.59 = 450.48 : x
  2. Step 2: Convert to fraction form
    480.36/715.59 = 450.48/x
  3. Step 3: Cross multiply
    480.36x = 715.59 × 450.48
  4. Step 4: Simplify right side
    480.36x = 322,358.98
  5. Step 5: Solve for x
    x = 322,358.98/480.36
  6. Step 6: Final answer
    x = 671.08

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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.