Home / 1,187,833.99-1,640,564.12-805,196.47

Finding the Fourth Proportional to 1,187,833.99, 1,640,564.12 and 805,196.47

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Solution

The fourth proportional to 1,187,833.99, 1,640,564.12 and 805,196.47 is: 1,112,088.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,833.99 : 1,640,564.12 = 805,196.47 : x
  2. Step 2: Convert to fraction form
    1,187,833.99/1,640,564.12 = 805,196.47/x
  3. Step 3: Cross multiply
    1,187,833.99x = 1,640,564.12 × 805,196.47
  4. Step 4: Simplify right side
    1,187,833.99x = 1,320,976,430,105.26
  5. Step 5: Solve for x
    x = 1,320,976,430,105.26/1,187,833.99
  6. Step 6: Final answer
    x = 1,112,088.43

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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.