Home / 778,103.33-1,073,790.77-438,571.58

Finding the Fourth Proportional to 778,103.33, 1,073,790.77 and 438,571.58

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Solution

The fourth proportional to 778,103.33, 1,073,790.77 and 438,571.58 is: 605,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,103.33 : 1,073,790.77 = 438,571.58 : x
  2. Step 2: Convert to fraction form
    778,103.33/1,073,790.77 = 438,571.58/x
  3. Step 3: Cross multiply
    778,103.33x = 1,073,790.77 × 438,571.58
  4. Step 4: Simplify right side
    778,103.33x = 470,934,107,026.51
  5. Step 5: Solve for x
    x = 470,934,107,026.51/778,103.33
  6. Step 6: Final answer
    x = 605,233.38

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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.