Home / 907,638.45-1,360,611.92-308,189.73

Finding the Fourth Proportional to 907,638.45, 1,360,611.92 and 308,189.73

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Solution

The fourth proportional to 907,638.45, 1,360,611.92 and 308,189.73 is: 461,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,638.45 : 1,360,611.92 = 308,189.73 : x
  2. Step 2: Convert to fraction form
    907,638.45/1,360,611.92 = 308,189.73/x
  3. Step 3: Cross multiply
    907,638.45x = 1,360,611.92 × 308,189.73
  4. Step 4: Simplify right side
    907,638.45x = 419,326,620,259.58
  5. Step 5: Solve for x
    x = 419,326,620,259.58/907,638.45
  6. Step 6: Final answer
    x = 461,997.42

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1.5x scale

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.