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Finding the Fourth Proportional to 636,491.84, 878,359.00 and 350,011.92

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Solution

The fourth proportional to 636,491.84, 878,359.00 and 350,011.92 is: 483,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,491.84 : 878,359.00 = 350,011.92 : x
  2. Step 2: Convert to fraction form
    636,491.84/878,359.00 = 350,011.92/x
  3. Step 3: Cross multiply
    636,491.84x = 878,359.00 × 350,011.92
  4. Step 4: Simplify right side
    636,491.84x = 307,436,122,371.38
  5. Step 5: Solve for x
    x = 307,436,122,371.38/636,491.84
  6. Step 6: Final answer
    x = 483,016.60

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Double scale
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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.