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Finding the Fourth Proportional to 636,474.42, 878,357.25 and 350,016.30

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Solution

The fourth proportional to 636,474.42, 878,357.25 and 350,016.30 is: 483,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,474.42 : 878,357.25 = 350,016.30 : x
  2. Step 2: Convert to fraction form
    636,474.42/878,357.25 = 350,016.30/x
  3. Step 3: Cross multiply
    636,474.42x = 878,357.25 × 350,016.30
  4. Step 4: Simplify right side
    636,474.42x = 307,439,354,723.18
  5. Step 5: Solve for x
    x = 307,439,354,723.18/636,474.42
  6. Step 6: Final answer
    x = 483,034.90

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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.