Home / 818,616.62-1,228,091.01-257,520.62

Finding the Fourth Proportional to 818,616.62, 1,228,091.01 and 257,520.62

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Solution

The fourth proportional to 818,616.62, 1,228,091.01 and 257,520.62 is: 386,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,616.62 : 1,228,091.01 = 257,520.62 : x
  2. Step 2: Convert to fraction form
    818,616.62/1,228,091.01 = 257,520.62/x
  3. Step 3: Cross multiply
    818,616.62x = 1,228,091.01 × 257,520.62
  4. Step 4: Simplify right side
    818,616.62x = 316,258,758,311.63
  5. Step 5: Solve for x
    x = 316,258,758,311.63/818,616.62
  6. Step 6: Final answer
    x = 386,333.18

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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.