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Finding the Fourth Proportional to 528,121.08, 728,794.26 and 301,752

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Solution

The fourth proportional to 528,121.08, 728,794.26 and 301,752 is: 416,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,121.08 : 728,794.26 = 301,752 : x
  2. Step 2: Convert to fraction form
    528,121.08/728,794.26 = 301,752/x
  3. Step 3: Cross multiply
    528,121.08x = 728,794.26 × 301,752
  4. Step 4: Simplify right side
    528,121.08x = 219,915,125,543.52
  5. Step 5: Solve for x
    x = 219,915,125,543.52/528,121.08
  6. Step 6: Final answer
    x = 416,410.43

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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.