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Finding the Fourth Proportional to 636,299.36, 878,085.24 and 349,816.94

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Solution

The fourth proportional to 636,299.36, 878,085.24 and 349,816.94 is: 482,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,299.36 : 878,085.24 = 349,816.94 : x
  2. Step 2: Convert to fraction form
    636,299.36/878,085.24 = 349,816.94/x
  3. Step 3: Cross multiply
    636,299.36x = 878,085.24 × 349,816.94
  4. Step 4: Simplify right side
    636,299.36x = 307,169,087,325.54
  5. Step 5: Solve for x
    x = 307,169,087,325.54/636,299.36
  6. Step 6: Final answer
    x = 482,743.04

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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.