Home / 2,146,209.20-3,215,627.40-1,021,857.20

Finding the Fourth Proportional to 2,146,209.20, 3,215,627.40 and 1,021,857.20

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Solution

The fourth proportional to 2,146,209.20, 3,215,627.40 and 1,021,857.20 is: 1,531,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,209.20 : 3,215,627.40 = 1,021,857.20 : x
  2. Step 2: Convert to fraction form
    2,146,209.20/3,215,627.40 = 1,021,857.20/x
  3. Step 3: Cross multiply
    2,146,209.20x = 3,215,627.40 × 1,021,857.20
  4. Step 4: Simplify right side
    2,146,209.20x = 3,285,912,011,207.28
  5. Step 5: Solve for x
    x = 3,285,912,011,207.28/2,146,209.20
  6. Step 6: Final answer
    x = 1,531,030.62

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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.