Home / 1,439,640-1,986,703.20-836,066.88

Finding the Fourth Proportional to 1,439,640, 1,986,703.20 and 836,066.88

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Solution

The fourth proportional to 1,439,640, 1,986,703.20 and 836,066.88 is: 1,153,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,640 : 1,986,703.20 = 836,066.88 : x
  2. Step 2: Convert to fraction form
    1,439,640/1,986,703.20 = 836,066.88/x
  3. Step 3: Cross multiply
    1,439,640x = 1,986,703.20 × 836,066.88
  4. Step 4: Simplify right side
    1,439,640x = 1,661,016,745,910.02
  5. Step 5: Solve for x
    x = 1,661,016,745,910.02/1,439,640
  6. Step 6: Final answer
    x = 1,153,772.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.