Home / 810,090.40-1,215,307.82-277,468.42

Finding the Fourth Proportional to 810,090.40, 1,215,307.82 and 277,468.42

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Solution

The fourth proportional to 810,090.40, 1,215,307.82 and 277,468.42 is: 416,261.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,090.40 : 1,215,307.82 = 277,468.42 : x
  2. Step 2: Convert to fraction form
    810,090.40/1,215,307.82 = 277,468.42/x
  3. Step 3: Cross multiply
    810,090.40x = 1,215,307.82 × 277,468.42
  4. Step 4: Simplify right side
    810,090.40x = 337,209,540,629.04
  5. Step 5: Solve for x
    x = 337,209,540,629.04/810,090.40
  6. Step 6: Final answer
    x = 416,261.62

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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.