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Finding the Fourth Proportional to 522,315.05, 783,472.83 and 344,780.56

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Solution

The fourth proportional to 522,315.05, 783,472.83 and 344,780.56 is: 517,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,315.05 : 783,472.83 = 344,780.56 : x
  2. Step 2: Convert to fraction form
    522,315.05/783,472.83 = 344,780.56/x
  3. Step 3: Cross multiply
    522,315.05x = 783,472.83 × 344,780.56
  4. Step 4: Simplify right side
    522,315.05x = 270,126,201,072.19
  5. Step 5: Solve for x
    x = 270,126,201,072.19/522,315.05
  6. Step 6: Final answer
    x = 517,171.01

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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.