Home / 1,439,862.13-1,986,997.89-786,488.59

Finding the Fourth Proportional to 1,439,862.13, 1,986,997.89 and 786,488.59

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Solution

The fourth proportional to 1,439,862.13, 1,986,997.89 and 786,488.59 is: 1,085,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,862.13 : 1,986,997.89 = 786,488.59 : x
  2. Step 2: Convert to fraction form
    1,439,862.13/1,986,997.89 = 786,488.59/x
  3. Step 3: Cross multiply
    1,439,862.13x = 1,986,997.89 × 786,488.59
  4. Step 4: Simplify right side
    1,439,862.13x = 1,562,751,168,839.08
  5. Step 5: Solve for x
    x = 1,562,751,168,839.08/1,439,862.13
  6. Step 6: Final answer
    x = 1,085,347.78

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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.