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Finding the Fourth Proportional to 636,676.34, 878,594.81 and 350,196.35

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Solution

The fourth proportional to 636,676.34, 878,594.81 and 350,196.35 is: 483,260.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,676.34 : 878,594.81 = 350,196.35 : x
  2. Step 2: Convert to fraction form
    636,676.34/878,594.81 = 350,196.35/x
  3. Step 3: Cross multiply
    636,676.34x = 878,594.81 × 350,196.35
  4. Step 4: Simplify right side
    636,676.34x = 307,680,689,446.99
  5. Step 5: Solve for x
    x = 307,680,689,446.99/636,676.34
  6. Step 6: Final answer
    x = 483,260.76

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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.