Home / 805,090.10-1,207,635.15-331,618.10

Finding the Fourth Proportional to 805,090.10, 1,207,635.15 and 331,618.10

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Solution

The fourth proportional to 805,090.10, 1,207,635.15 and 331,618.10 is: 497,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,090.10 : 1,207,635.15 = 331,618.10 : x
  2. Step 2: Convert to fraction form
    805,090.10/1,207,635.15 = 331,618.10/x
  3. Step 3: Cross multiply
    805,090.10x = 1,207,635.15 × 331,618.10
  4. Step 4: Simplify right side
    805,090.10x = 400,473,673,936.22
  5. Step 5: Solve for x
    x = 400,473,673,936.22/805,090.10
  6. Step 6: Final answer
    x = 497,427.15

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Similar ratio
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1.5x scale

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.