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Finding the Fourth Proportional to 636,858.19, 878,864.27 and 350,372.13

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Solution

The fourth proportional to 636,858.19, 878,864.27 and 350,372.13 is: 483,513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,858.19 : 878,864.27 = 350,372.13 : x
  2. Step 2: Convert to fraction form
    636,858.19/878,864.27 = 350,372.13/x
  3. Step 3: Cross multiply
    636,858.19x = 878,864.27 × 350,372.13
  4. Step 4: Simplify right side
    636,858.19x = 307,929,541,866.47
  5. Step 5: Solve for x
    x = 307,929,541,866.47/636,858.19
  6. Step 6: Final answer
    x = 483,513.51

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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.