Home / 725,355.95-1,001,083.25-438,878.39

Finding the Fourth Proportional to 725,355.95, 1,001,083.25 and 438,878.39

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Solution

The fourth proportional to 725,355.95, 1,001,083.25 and 438,878.39 is: 605,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,355.95 : 1,001,083.25 = 438,878.39 : x
  2. Step 2: Convert to fraction form
    725,355.95/1,001,083.25 = 438,878.39/x
  3. Step 3: Cross multiply
    725,355.95x = 1,001,083.25 × 438,878.39
  4. Step 4: Simplify right side
    725,355.95x = 439,353,801,107.75
  5. Step 5: Solve for x
    x = 439,353,801,107.75/725,355.95
  6. Step 6: Final answer
    x = 605,707.87

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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.