Home / 1,305,457.17-1,801,660.37-876,630.21

Finding the Fourth Proportional to 1,305,457.17, 1,801,660.37 and 876,630.21

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Solution

The fourth proportional to 1,305,457.17, 1,801,660.37 and 876,630.21 is: 1,209,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,457.17 : 1,801,660.37 = 876,630.21 : x
  2. Step 2: Convert to fraction form
    1,305,457.17/1,801,660.37 = 876,630.21/x
  3. Step 3: Cross multiply
    1,305,457.17x = 1,801,660.37 × 876,630.21
  4. Step 4: Simplify right side
    1,305,457.17x = 1,579,389,904,118.63
  5. Step 5: Solve for x
    x = 1,579,389,904,118.63/1,305,457.17
  6. Step 6: Final answer
    x = 1,209,836.63

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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.