Home / 808,135.80-1,211,426.10-628,121.40

Finding the Fourth Proportional to 808,135.80, 1,211,426.10 and 628,121.40

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Solution

The fourth proportional to 808,135.80, 1,211,426.10 and 628,121.40 is: 941,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,135.80 : 1,211,426.10 = 628,121.40 : x
  2. Step 2: Convert to fraction form
    808,135.80/1,211,426.10 = 628,121.40/x
  3. Step 3: Cross multiply
    808,135.80x = 1,211,426.10 × 628,121.40
  4. Step 4: Simplify right side
    808,135.80x = 760,922,657,928.54
  5. Step 5: Solve for x
    x = 760,922,657,928.54/808,135.80
  6. Step 6: Final answer
    x = 941,577.71

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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.