Home / 1,210,097.78-1,815,229.85-400,480.73

Finding the Fourth Proportional to 1,210,097.78, 1,815,229.85 and 400,480.73

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Solution

The fourth proportional to 1,210,097.78, 1,815,229.85 and 400,480.73 is: 600,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,097.78 : 1,815,229.85 = 400,480.73 : x
  2. Step 2: Convert to fraction form
    1,210,097.78/1,815,229.85 = 400,480.73/x
  3. Step 3: Cross multiply
    1,210,097.78x = 1,815,229.85 × 400,480.73
  4. Step 4: Simplify right side
    1,210,097.78x = 726,964,575,445.79
  5. Step 5: Solve for x
    x = 726,964,575,445.79/1,210,097.78
  6. Step 6: Final answer
    x = 600,748.62

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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.