Home / 1,781,790.80-2,672,401.80-519,323.12

Finding the Fourth Proportional to 1,781,790.80, 2,672,401.80 and 519,323.12

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Solution

The fourth proportional to 1,781,790.80, 2,672,401.80 and 519,323.12 is: 778,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,790.80 : 2,672,401.80 = 519,323.12 : x
  2. Step 2: Convert to fraction form
    1,781,790.80/2,672,401.80 = 519,323.12/x
  3. Step 3: Cross multiply
    1,781,790.80x = 2,672,401.80 × 519,323.12
  4. Step 4: Simplify right side
    1,781,790.80x = 1,387,840,040,669.62
  5. Step 5: Solve for x
    x = 1,387,840,040,669.62/1,781,790.80
  6. Step 6: Final answer
    x = 778,901.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.