Home / 813,327.89-1,122,392.50-450,806.31

Finding the Fourth Proportional to 813,327.89, 1,122,392.50 and 450,806.31

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Solution

The fourth proportional to 813,327.89, 1,122,392.50 and 450,806.31 is: 622,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,327.89 : 1,122,392.50 = 450,806.31 : x
  2. Step 2: Convert to fraction form
    813,327.89/1,122,392.50 = 450,806.31/x
  3. Step 3: Cross multiply
    813,327.89x = 1,122,392.50 × 450,806.31
  4. Step 4: Simplify right side
    813,327.89x = 505,981,620,169.66
  5. Step 5: Solve for x
    x = 505,981,620,169.66/813,327.89
  6. Step 6: Final answer
    x = 622,112.72

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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.