Home / 1,231,909.40-1,846,827.30-640,933.40

Finding the Fourth Proportional to 1,231,909.40, 1,846,827.30 and 640,933.40

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Solution

The fourth proportional to 1,231,909.40, 1,846,827.30 and 640,933.40 is: 960,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,909.40 : 1,846,827.30 = 640,933.40 : x
  2. Step 2: Convert to fraction form
    1,231,909.40/1,846,827.30 = 640,933.40/x
  3. Step 3: Cross multiply
    1,231,909.40x = 1,846,827.30 × 640,933.40
  4. Step 4: Simplify right side
    1,231,909.40x = 1,183,693,300,601.82
  5. Step 5: Solve for x
    x = 1,183,693,300,601.82/1,231,909.40
  6. Step 6: Final answer
    x = 960,860.68

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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.