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Finding the Fourth Proportional to 552,860.88, 763,009.92 and 311,202.24

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Solution

The fourth proportional to 552,860.88, 763,009.92 and 311,202.24 is: 429,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,860.88 : 763,009.92 = 311,202.24 : x
  2. Step 2: Convert to fraction form
    552,860.88/763,009.92 = 311,202.24/x
  3. Step 3: Cross multiply
    552,860.88x = 763,009.92 × 311,202.24
  4. Step 4: Simplify right side
    552,860.88x = 237,450,396,246.22
  5. Step 5: Solve for x
    x = 237,450,396,246.22/552,860.88
  6. Step 6: Final answer
    x = 429,493.94

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1.5x scale

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.