Home / 1,009,404.20-1,512,723.90-822,780.20

Finding the Fourth Proportional to 1,009,404.20, 1,512,723.90 and 822,780.20

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Solution

The fourth proportional to 1,009,404.20, 1,512,723.90 and 822,780.20 is: 1,233,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,404.20 : 1,512,723.90 = 822,780.20 : x
  2. Step 2: Convert to fraction form
    1,009,404.20/1,512,723.90 = 822,780.20/x
  3. Step 3: Cross multiply
    1,009,404.20x = 1,512,723.90 × 822,780.20
  4. Step 4: Simplify right side
    1,009,404.20x = 1,244,639,272,986.78
  5. Step 5: Solve for x
    x = 1,244,639,272,986.78/1,009,404.20
  6. Step 6: Final answer
    x = 1,233,043.49

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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.