Home / 1,240,777.81-1,859,983.75-398,737.81

Finding the Fourth Proportional to 1,240,777.81, 1,859,983.75 and 398,737.81

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Solution

The fourth proportional to 1,240,777.81, 1,859,983.75 and 398,737.81 is: 597,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,777.81 : 1,859,983.75 = 398,737.81 : x
  2. Step 2: Convert to fraction form
    1,240,777.81/1,859,983.75 = 398,737.81/x
  3. Step 3: Cross multiply
    1,240,777.81x = 1,859,983.75 × 398,737.81
  4. Step 4: Simplify right side
    1,240,777.81x = 741,645,847,110.59
  5. Step 5: Solve for x
    x = 741,645,847,110.59/1,240,777.81
  6. Step 6: Final answer
    x = 597,726.56

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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.