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Finding the Fourth Proportional to 636,529.79, 878,393.57 and 350,049.87

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Solution

The fourth proportional to 636,529.79, 878,393.57 and 350,049.87 is: 483,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,529.79 : 878,393.57 = 350,049.87 : x
  2. Step 2: Convert to fraction form
    636,529.79/878,393.57 = 350,049.87/x
  3. Step 3: Cross multiply
    636,529.79x = 878,393.57 × 350,049.87
  4. Step 4: Simplify right side
    636,529.79x = 307,481,553,237.09
  5. Step 5: Solve for x
    x = 307,481,553,237.09/636,529.79
  6. Step 6: Final answer
    x = 483,059.18

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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.