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Finding the Fourth Proportional to 636,653.66, 878,582.50 and 350,195.54

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Solution

The fourth proportional to 636,653.66, 878,582.50 and 350,195.54 is: 483,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,653.66 : 878,582.50 = 350,195.54 : x
  2. Step 2: Convert to fraction form
    636,653.66/878,582.50 = 350,195.54/x
  3. Step 3: Cross multiply
    636,653.66x = 878,582.50 × 350,195.54
  4. Step 4: Simplify right side
    636,653.66x = 307,675,667,753.65
  5. Step 5: Solve for x
    x = 307,675,667,753.65/636,653.66
  6. Step 6: Final answer
    x = 483,270.09

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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.