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Finding the Fourth Proportional to 636,845.52, 878,846.82 and 350,359.50

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Solution

The fourth proportional to 636,845.52, 878,846.82 and 350,359.50 is: 483,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,845.52 : 878,846.82 = 350,359.50 : x
  2. Step 2: Convert to fraction form
    636,845.52/878,846.82 = 350,359.50/x
  3. Step 3: Cross multiply
    636,845.52x = 878,846.82 × 350,359.50
  4. Step 4: Simplify right side
    636,845.52x = 307,912,332,431.79
  5. Step 5: Solve for x
    x = 307,912,332,431.79/636,845.52
  6. Step 6: Final answer
    x = 483,496.11

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1.5x scale

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.