Home / 831,279.22-1,147,230.30-463,871.88

Finding the Fourth Proportional to 831,279.22, 1,147,230.30 and 463,871.88

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Solution

The fourth proportional to 831,279.22, 1,147,230.30 and 463,871.88 is: 640,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,279.22 : 1,147,230.30 = 463,871.88 : x
  2. Step 2: Convert to fraction form
    831,279.22/1,147,230.30 = 463,871.88/x
  3. Step 3: Cross multiply
    831,279.22x = 1,147,230.30 × 463,871.88
  4. Step 4: Simplify right side
    831,279.22x = 532,167,876,053.96
  5. Step 5: Solve for x
    x = 532,167,876,053.96/831,279.22
  6. Step 6: Final answer
    x = 640,179.45

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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.