Home / 1,782,126.90-2,667,285.45-1,640,409.30

Finding the Fourth Proportional to 1,782,126.90, 2,667,285.45 and 1,640,409.30

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Solution

The fourth proportional to 1,782,126.90, 2,667,285.45 and 1,640,409.30 is: 2,455,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,126.90 : 2,667,285.45 = 1,640,409.30 : x
  2. Step 2: Convert to fraction form
    1,782,126.90/2,667,285.45 = 1,640,409.30/x
  3. Step 3: Cross multiply
    1,782,126.90x = 2,667,285.45 × 1,640,409.30
  4. Step 4: Simplify right side
    1,782,126.90x = 4,375,439,857,934.69
  5. Step 5: Solve for x
    x = 4,375,439,857,934.69/1,782,126.90
  6. Step 6: Final answer
    x = 2,455,178.62

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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.