Home / 1,119,195.90-1,678,793.85-782,616.60

Finding the Fourth Proportional to 1,119,195.90, 1,678,793.85 and 782,616.60

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Solution

The fourth proportional to 1,119,195.90, 1,678,793.85 and 782,616.60 is: 1,173,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,195.90 : 1,678,793.85 = 782,616.60 : x
  2. Step 2: Convert to fraction form
    1,119,195.90/1,678,793.85 = 782,616.60/x
  3. Step 3: Cross multiply
    1,119,195.90x = 1,678,793.85 × 782,616.60
  4. Step 4: Simplify right side
    1,119,195.90x = 1,313,851,934,987.91
  5. Step 5: Solve for x
    x = 1,313,851,934,987.91/1,119,195.90
  6. Step 6: Final answer
    x = 1,173,924.90

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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.