Home / 818,919.39-1,228,334.40-250,300.31

Finding the Fourth Proportional to 818,919.39, 1,228,334.40 and 250,300.31

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Solution

The fourth proportional to 818,919.39, 1,228,334.40 and 250,300.31 is: 375,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,919.39 : 1,228,334.40 = 250,300.31 : x
  2. Step 2: Convert to fraction form
    818,919.39/1,228,334.40 = 250,300.31/x
  3. Step 3: Cross multiply
    818,919.39x = 1,228,334.40 × 250,300.31
  4. Step 4: Simplify right side
    818,919.39x = 307,452,474,961.99
  5. Step 5: Solve for x
    x = 307,452,474,961.99/818,919.39
  6. Step 6: Final answer
    x = 375,436.80

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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.