Home / 818,734.32-1,228,338.32-338,873.40

Finding the Fourth Proportional to 818,734.32, 1,228,338.32 and 338,873.40

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Solution

The fourth proportional to 818,734.32, 1,228,338.32 and 338,873.40 is: 508,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,734.32 : 1,228,338.32 = 338,873.40 : x
  2. Step 2: Convert to fraction form
    818,734.32/1,228,338.32 = 338,873.40/x
  3. Step 3: Cross multiply
    818,734.32x = 1,228,338.32 × 338,873.40
  4. Step 4: Simplify right side
    818,734.32x = 416,251,181,154.32
  5. Step 5: Solve for x
    x = 416,251,181,154.32/818,734.32
  6. Step 6: Final answer
    x = 508,408.13

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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.