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Finding the Fourth Proportional to 1,786,982.51, 2,681,802.68 and 722,033.80

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Solution

The fourth proportional to 1,786,982.51, 2,681,802.68 and 722,033.80 is: 1,083,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,982.51 : 2,681,802.68 = 722,033.80 : x
  2. Step 2: Convert to fraction form
    1,786,982.51/2,681,802.68 = 722,033.80/x
  3. Step 3: Cross multiply
    1,786,982.51x = 2,681,802.68 × 722,033.80
  4. Step 4: Simplify right side
    1,786,982.51x = 1,936,352,169,575.91
  5. Step 5: Solve for x
    x = 1,936,352,169,575.91/1,786,982.51
  6. Step 6: Final answer
    x = 1,083,587.64

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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.