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Finding the Fourth Proportional to 610,871.44, 843,048.81 and 338,990.77

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Solution

The fourth proportional to 610,871.44, 843,048.81 and 338,990.77 is: 467,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,871.44 : 843,048.81 = 338,990.77 : x
  2. Step 2: Convert to fraction form
    610,871.44/843,048.81 = 338,990.77/x
  3. Step 3: Cross multiply
    610,871.44x = 843,048.81 × 338,990.77
  4. Step 4: Simplify right side
    610,871.44x = 285,785,765,249.48
  5. Step 5: Solve for x
    x = 285,785,765,249.48/610,871.44
  6. Step 6: Final answer
    x = 467,832.91

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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.