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Finding the Fourth Proportional to 636,529.68, 878,393.43 and 350,049.78

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Solution

The fourth proportional to 636,529.68, 878,393.43 and 350,049.78 is: 483,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,529.68 : 878,393.43 = 350,049.78 : x
  2. Step 2: Convert to fraction form
    636,529.68/878,393.43 = 350,049.78/x
  3. Step 3: Cross multiply
    636,529.68x = 878,393.43 × 350,049.78
  4. Step 4: Simplify right side
    636,529.68x = 307,481,426,924.95
  5. Step 5: Solve for x
    x = 307,481,426,924.95/636,529.68
  6. Step 6: Final answer
    x = 483,059.06

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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.