Home / 3,420,836.45-4,720,550.81-1,871,789.11

Finding the Fourth Proportional to 3,420,836.45, 4,720,550.81 and 1,871,789.11

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Solution

The fourth proportional to 3,420,836.45, 4,720,550.81 and 1,871,789.11 is: 2,582,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,836.45 : 4,720,550.81 = 1,871,789.11 : x
  2. Step 2: Convert to fraction form
    3,420,836.45/4,720,550.81 = 1,871,789.11/x
  3. Step 3: Cross multiply
    3,420,836.45x = 4,720,550.81 × 1,871,789.11
  4. Step 4: Simplify right side
    3,420,836.45x = 8,835,875,578,199.36
  5. Step 5: Solve for x
    x = 8,835,875,578,199.36/3,420,836.45
  6. Step 6: Final answer
    x = 2,582,957.62

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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.