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Finding the Fourth Proportional to 562.95, 840.38 and 480.33

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Solution

The fourth proportional to 562.95, 840.38 and 480.33 is: 717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.95 : 840.38 = 480.33 : x
  2. Step 2: Convert to fraction form
    562.95/840.38 = 480.33/x
  3. Step 3: Cross multiply
    562.95x = 840.38 × 480.33
  4. Step 4: Simplify right side
    562.95x = 403,657.32
  5. Step 5: Solve for x
    x = 403,657.32/562.95
  6. Step 6: Final answer
    x = 717.04

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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.