Home / 902,945.28-1,246,190.40-520,965.12

Finding the Fourth Proportional to 902,945.28, 1,246,190.40 and 520,965.12

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Solution

The fourth proportional to 902,945.28, 1,246,190.40 and 520,965.12 is: 719,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,945.28 : 1,246,190.40 = 520,965.12 : x
  2. Step 2: Convert to fraction form
    902,945.28/1,246,190.40 = 520,965.12/x
  3. Step 3: Cross multiply
    902,945.28x = 1,246,190.40 × 520,965.12
  4. Step 4: Simplify right side
    902,945.28x = 649,221,731,278.85
  5. Step 5: Solve for x
    x = 649,221,731,278.85/902,945.28
  6. Step 6: Final answer
    x = 719,004.51

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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.