Home / 637,261.92-878,973.48-419,401.17

Finding the Fourth Proportional to 637,261.92, 878,973.48 and 419,401.17

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Solution

The fourth proportional to 637,261.92, 878,973.48 and 419,401.17 is: 578,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,261.92 : 878,973.48 = 419,401.17 : x
  2. Step 2: Convert to fraction form
    637,261.92/878,973.48 = 419,401.17/x
  3. Step 3: Cross multiply
    637,261.92x = 878,973.48 × 419,401.17
  4. Step 4: Simplify right side
    637,261.92x = 368,642,505,910.97
  5. Step 5: Solve for x
    x = 368,642,505,910.97/637,261.92
  6. Step 6: Final answer
    x = 578,478.79

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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.