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Finding the Fourth Proportional to 636,667.68, 878,601.84 and 350,209.56

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Solution

The fourth proportional to 636,667.68, 878,601.84 and 350,209.56 is: 483,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,667.68 : 878,601.84 = 350,209.56 : x
  2. Step 2: Convert to fraction form
    636,667.68/878,601.84 = 350,209.56/x
  3. Step 3: Cross multiply
    636,667.68x = 878,601.84 × 350,209.56
  4. Step 4: Simplify right side
    636,667.68x = 307,694,763,801.59
  5. Step 5: Solve for x
    x = 307,694,763,801.59/636,667.68
  6. Step 6: Final answer
    x = 483,289.44

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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.