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Finding the Fourth Proportional to 886,693.93, 1,330,227.81 and 287,608.48

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Solution

The fourth proportional to 886,693.93, 1,330,227.81 and 287,608.48 is: 431,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,693.93 : 1,330,227.81 = 287,608.48 : x
  2. Step 2: Convert to fraction form
    886,693.93/1,330,227.81 = 287,608.48/x
  3. Step 3: Cross multiply
    886,693.93x = 1,330,227.81 × 287,608.48
  4. Step 4: Simplify right side
    886,693.93x = 382,584,798,487.83
  5. Step 5: Solve for x
    x = 382,584,798,487.83/886,693.93
  6. Step 6: Final answer
    x = 431,473.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.