Home / 1,422,982.16-1,963,762.22-778,387.61

Finding the Fourth Proportional to 1,422,982.16, 1,963,762.22 and 778,387.61

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Solution

The fourth proportional to 1,422,982.16, 1,963,762.22 and 778,387.61 is: 1,074,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,982.16 : 1,963,762.22 = 778,387.61 : x
  2. Step 2: Convert to fraction form
    1,422,982.16/1,963,762.22 = 778,387.61/x
  3. Step 3: Cross multiply
    1,422,982.16x = 1,963,762.22 × 778,387.61
  4. Step 4: Simplify right side
    1,422,982.16x = 1,528,568,181,034.09
  5. Step 5: Solve for x
    x = 1,528,568,181,034.09/1,422,982.16
  6. Step 6: Final answer
    x = 1,074,200.52

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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.