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Finding the Fourth Proportional to 547,939.76, 756,637.81 and 344,343.42

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Solution

The fourth proportional to 547,939.76, 756,637.81 and 344,343.42 is: 475,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,939.76 : 756,637.81 = 344,343.42 : x
  2. Step 2: Convert to fraction form
    547,939.76/756,637.81 = 344,343.42/x
  3. Step 3: Cross multiply
    547,939.76x = 756,637.81 × 344,343.42
  4. Step 4: Simplify right side
    547,939.76x = 260,543,250,335.85
  5. Step 5: Solve for x
    x = 260,543,250,335.85/547,939.76
  6. Step 6: Final answer
    x = 475,496.16

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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.