Home / 1,700,380.78-2,547,771.75-1,188,097.90

Finding the Fourth Proportional to 1,700,380.78, 2,547,771.75 and 1,188,097.90

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Solution

The fourth proportional to 1,700,380.78, 2,547,771.75 and 1,188,097.90 is: 1,780,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700,380.78 : 2,547,771.75 = 1,188,097.90 : x
  2. Step 2: Convert to fraction form
    1,700,380.78/2,547,771.75 = 1,188,097.90/x
  3. Step 3: Cross multiply
    1,700,380.78x = 2,547,771.75 × 1,188,097.90
  4. Step 4: Simplify right side
    1,700,380.78x = 3,027,002,265,854.33
  5. Step 5: Solve for x
    x = 3,027,002,265,854.33/1,700,380.78
  6. Step 6: Final answer
    x = 1,780,190.83

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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.