Home / 644,182.39-889,102.20-372,261.70

Finding the Fourth Proportional to 644,182.39, 889,102.20 and 372,261.70

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Solution

The fourth proportional to 644,182.39, 889,102.20 and 372,261.70 is: 513,796.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,182.39 : 889,102.20 = 372,261.70 : x
  2. Step 2: Convert to fraction form
    644,182.39/889,102.20 = 372,261.70/x
  3. Step 3: Cross multiply
    644,182.39x = 889,102.20 × 372,261.70
  4. Step 4: Simplify right side
    644,182.39x = 330,978,696,445.74
  5. Step 5: Solve for x
    x = 330,978,696,445.74/644,182.39
  6. Step 6: Final answer
    x = 513,796.56

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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.