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Finding the Fourth Proportional to 485,744.58, 670,375.71 and 363,023.82

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Solution

The fourth proportional to 485,744.58, 670,375.71 and 363,023.82 is: 501,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,744.58 : 670,375.71 = 363,023.82 : x
  2. Step 2: Convert to fraction form
    485,744.58/670,375.71 = 363,023.82/x
  3. Step 3: Cross multiply
    485,744.58x = 670,375.71 × 363,023.82
  4. Step 4: Simplify right side
    485,744.58x = 243,362,351,079.41
  5. Step 5: Solve for x
    x = 243,362,351,079.41/485,744.58
  6. Step 6: Final answer
    x = 501,008.89

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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.