Home / 932,481.72-1,286,135.98-642,185.49

Finding the Fourth Proportional to 932,481.72, 1,286,135.98 and 642,185.49

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Solution

The fourth proportional to 932,481.72, 1,286,135.98 and 642,185.49 is: 885,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,481.72 : 1,286,135.98 = 642,185.49 : x
  2. Step 2: Convert to fraction form
    932,481.72/1,286,135.98 = 642,185.49/x
  3. Step 3: Cross multiply
    932,481.72x = 1,286,135.98 × 642,185.49
  4. Step 4: Simplify right side
    932,481.72x = 825,937,858,092.25
  5. Step 5: Solve for x
    x = 825,937,858,092.25/932,481.72
  6. Step 6: Final answer
    x = 885,741.61

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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.