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Finding the Fourth Proportional to 636,699.96, 878,627.43 and 350,219.97

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Solution

The fourth proportional to 636,699.96, 878,627.43 and 350,219.97 is: 483,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,699.96 : 878,627.43 = 350,219.97 : x
  2. Step 2: Convert to fraction form
    636,699.96/878,627.43 = 350,219.97/x
  3. Step 3: Cross multiply
    636,699.96x = 878,627.43 × 350,219.97
  4. Step 4: Simplify right side
    636,699.96x = 307,712,872,175.78
  5. Step 5: Solve for x
    x = 307,712,872,175.78/636,699.96
  6. Step 6: Final answer
    x = 483,293.37

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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.