Home / 1,309,812.12-1,806,879.33-765,592.38

Finding the Fourth Proportional to 1,309,812.12, 1,806,879.33 and 765,592.38

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Solution

The fourth proportional to 1,309,812.12, 1,806,879.33 and 765,592.38 is: 1,056,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,812.12 : 1,806,879.33 = 765,592.38 : x
  2. Step 2: Convert to fraction form
    1,309,812.12/1,806,879.33 = 765,592.38/x
  3. Step 3: Cross multiply
    1,309,812.12x = 1,806,879.33 × 765,592.38
  4. Step 4: Simplify right side
    1,309,812.12x = 1,383,333,046,627.51
  5. Step 5: Solve for x
    x = 1,383,333,046,627.51/1,309,812.12
  6. Step 6: Final answer
    x = 1,056,130.90

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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.