Home / 805,090.60-1,207,635.90-331,618.60

Finding the Fourth Proportional to 805,090.60, 1,207,635.90 and 331,618.60

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Solution

The fourth proportional to 805,090.60, 1,207,635.90 and 331,618.60 is: 497,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,090.60 : 1,207,635.90 = 331,618.60 : x
  2. Step 2: Convert to fraction form
    805,090.60/1,207,635.90 = 331,618.60/x
  3. Step 3: Cross multiply
    805,090.60x = 1,207,635.90 × 331,618.60
  4. Step 4: Simplify right side
    805,090.60x = 400,474,526,467.74
  5. Step 5: Solve for x
    x = 400,474,526,467.74/805,090.60
  6. Step 6: Final answer
    x = 497,427.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.