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Finding the Fourth Proportional to 632,380, 872,968.98 and 403,244.44

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Solution

The fourth proportional to 632,380, 872,968.98 and 403,244.44 is: 556,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,380 : 872,968.98 = 403,244.44 : x
  2. Step 2: Convert to fraction form
    632,380/872,968.98 = 403,244.44/x
  3. Step 3: Cross multiply
    632,380x = 872,968.98 × 403,244.44
  4. Step 4: Simplify right side
    632,380x = 352,019,887,477.47
  5. Step 5: Solve for x
    x = 352,019,887,477.47/632,380
  6. Step 6: Final answer
    x = 556,658.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.