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Finding the Fourth Proportional to 635,623.76, 876,237 and 444,042.56

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Solution

The fourth proportional to 635,623.76, 876,237 and 444,042.56 is: 612,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,623.76 : 876,237 = 444,042.56 : x
  2. Step 2: Convert to fraction form
    635,623.76/876,237 = 444,042.56/x
  3. Step 3: Cross multiply
    635,623.76x = 876,237 × 444,042.56
  4. Step 4: Simplify right side
    635,623.76x = 389,086,520,646.72
  5. Step 5: Solve for x
    x = 389,086,520,646.72/635,623.76
  6. Step 6: Final answer
    x = 612,133.38

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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.