Home / 778,552.97-1,074,403.24-439,021.22

Finding the Fourth Proportional to 778,552.97, 1,074,403.24 and 439,021.22

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Solution

The fourth proportional to 778,552.97, 1,074,403.24 and 439,021.22 is: 605,849.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,552.97 : 1,074,403.24 = 439,021.22 : x
  2. Step 2: Convert to fraction form
    778,552.97/1,074,403.24 = 439,021.22/x
  3. Step 3: Cross multiply
    778,552.97x = 1,074,403.24 × 439,021.22
  4. Step 4: Simplify right side
    778,552.97x = 471,685,814,727.18
  5. Step 5: Solve for x
    x = 471,685,814,727.18/778,552.97
  6. Step 6: Final answer
    x = 605,849.36

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Double scale
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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.