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Finding the Fourth Proportional to 636,675.82, 878,594.12 and 350,195.84

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Solution

The fourth proportional to 636,675.82, 878,594.12 and 350,195.84 is: 483,260.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,675.82 : 878,594.12 = 350,195.84 : x
  2. Step 2: Convert to fraction form
    636,675.82/878,594.12 = 350,195.84/x
  3. Step 3: Cross multiply
    636,675.82x = 878,594.12 × 350,195.84
  4. Step 4: Simplify right side
    636,675.82x = 307,680,005,872.46
  5. Step 5: Solve for x
    x = 307,680,005,872.46/636,675.82
  6. Step 6: Final answer
    x = 483,260.08

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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.