Home / 1,373,661.84-2,057,682.44-643,138.22

Finding the Fourth Proportional to 1,373,661.84, 2,057,682.44 and 643,138.22

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Solution

The fourth proportional to 1,373,661.84, 2,057,682.44 and 643,138.22 is: 963,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,661.84 : 2,057,682.44 = 643,138.22 : x
  2. Step 2: Convert to fraction form
    1,373,661.84/2,057,682.44 = 643,138.22/x
  3. Step 3: Cross multiply
    1,373,661.84x = 2,057,682.44 × 643,138.22
  4. Step 4: Simplify right side
    1,373,661.84x = 1,323,374,221,786.86
  5. Step 5: Solve for x
    x = 1,323,374,221,786.86/1,373,661.84
  6. Step 6: Final answer
    x = 963,391.56

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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.