Home / 831,827.05-1,147,924.79-449,853.83

Finding the Fourth Proportional to 831,827.05, 1,147,924.79 and 449,853.83

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Solution

The fourth proportional to 831,827.05, 1,147,924.79 and 449,853.83 is: 620,800.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,827.05 : 1,147,924.79 = 449,853.83 : x
  2. Step 2: Convert to fraction form
    831,827.05/1,147,924.79 = 449,853.83/x
  3. Step 3: Cross multiply
    831,827.05x = 1,147,924.79 × 449,853.83
  4. Step 4: Simplify right side
    831,827.05x = 516,398,363,333.45
  5. Step 5: Solve for x
    x = 516,398,363,333.45/831,827.05
  6. Step 6: Final answer
    x = 620,800.16

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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.