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Finding the Fourth Proportional to 528,042.96, 728,654.28 and 301,644.24

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Solution

The fourth proportional to 528,042.96, 728,654.28 and 301,644.24 is: 416,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,042.96 : 728,654.28 = 301,644.24 : x
  2. Step 2: Convert to fraction form
    528,042.96/728,654.28 = 301,644.24/x
  3. Step 3: Cross multiply
    528,042.96x = 728,654.28 × 301,644.24
  4. Step 4: Simplify right side
    528,042.96x = 219,794,366,513.35
  5. Step 5: Solve for x
    x = 219,794,366,513.35/528,042.96
  6. Step 6: Final answer
    x = 416,243.34

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1.5x scale

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.