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Finding the Fourth Proportional to 636,858.10, 878,864.14 and 350,372.03

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Solution

The fourth proportional to 636,858.10, 878,864.14 and 350,372.03 is: 483,513.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,858.10 : 878,864.14 = 350,372.03 : x
  2. Step 2: Convert to fraction form
    636,858.10/878,864.14 = 350,372.03/x
  3. Step 3: Cross multiply
    636,858.10x = 878,864.14 × 350,372.03
  4. Step 4: Simplify right side
    636,858.10x = 307,929,412,826.00
  5. Step 5: Solve for x
    x = 307,929,412,826.00/636,858.10
  6. Step 6: Final answer
    x = 483,513.38

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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.