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Finding the Fourth Proportional to 636,958.68, 878,902.61 and 364,974.24

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Solution

The fourth proportional to 636,958.68, 878,902.61 and 364,974.24 is: 503,606.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,958.68 : 878,902.61 = 364,974.24 : x
  2. Step 2: Convert to fraction form
    636,958.68/878,902.61 = 364,974.24/x
  3. Step 3: Cross multiply
    636,958.68x = 878,902.61 × 364,974.24
  4. Step 4: Simplify right side
    636,958.68x = 320,776,812,118.77
  5. Step 5: Solve for x
    x = 320,776,812,118.77/636,958.68
  6. Step 6: Final answer
    x = 503,606.94

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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.