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Finding the Fourth Proportional to 635.51, 880.98 and 624.14

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Solution

The fourth proportional to 635.51, 880.98 and 624.14 is: 865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.51 : 880.98 = 624.14 : x
  2. Step 2: Convert to fraction form
    635.51/880.98 = 624.14/x
  3. Step 3: Cross multiply
    635.51x = 880.98 × 624.14
  4. Step 4: Simplify right side
    635.51x = 549,851.42
  5. Step 5: Solve for x
    x = 549,851.42/635.51
  6. Step 6: Final answer
    x = 865.21

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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.