Home / 1,200,759.90-1,798,253.78-686,867.01

Finding the Fourth Proportional to 1,200,759.90, 1,798,253.78 and 686,867.01

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Solution

The fourth proportional to 1,200,759.90, 1,798,253.78 and 686,867.01 is: 1,028,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,759.90 : 1,798,253.78 = 686,867.01 : x
  2. Step 2: Convert to fraction form
    1,200,759.90/1,798,253.78 = 686,867.01/x
  3. Step 3: Cross multiply
    1,200,759.90x = 1,798,253.78 × 686,867.01
  4. Step 4: Simplify right side
    1,200,759.90x = 1,235,161,200,398.91
  5. Step 5: Solve for x
    x = 1,235,161,200,398.91/1,200,759.90
  6. Step 6: Final answer
    x = 1,028,649.61

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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.