Home / 3,187,400.78-4,398,769.04-1,792,401.48

Finding the Fourth Proportional to 3,187,400.78, 4,398,769.04 and 1,792,401.48

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Solution

The fourth proportional to 3,187,400.78, 4,398,769.04 and 1,792,401.48 is: 2,473,601.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187,400.78 : 4,398,769.04 = 1,792,401.48 : x
  2. Step 2: Convert to fraction form
    3,187,400.78/4,398,769.04 = 1,792,401.48/x
  3. Step 3: Cross multiply
    3,187,400.78x = 4,398,769.04 × 1,792,401.48
  4. Step 4: Simplify right side
    3,187,400.78x = 7,884,360,137,474.18
  5. Step 5: Solve for x
    x = 7,884,360,137,474.18/3,187,400.78
  6. Step 6: Final answer
    x = 2,473,601.75

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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.