Home / 778,515.22-1,074,351.15-438,983.47

Finding the Fourth Proportional to 778,515.22, 1,074,351.15 and 438,983.47

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Solution

The fourth proportional to 778,515.22, 1,074,351.15 and 438,983.47 is: 605,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,515.22 : 1,074,351.15 = 438,983.47 : x
  2. Step 2: Convert to fraction form
    778,515.22/1,074,351.15 = 438,983.47/x
  3. Step 3: Cross multiply
    778,515.22x = 1,074,351.15 × 438,983.47
  4. Step 4: Simplify right side
    778,515.22x = 471,622,388,258.82
  5. Step 5: Solve for x
    x = 471,622,388,258.82/778,515.22
  6. Step 6: Final answer
    x = 605,797.27

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1.5x scale

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.