Home / 823,980.20-1,236,747.90-509,052.20

Finding the Fourth Proportional to 823,980.20, 1,236,747.90 and 509,052.20

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Solution

The fourth proportional to 823,980.20, 1,236,747.90 and 509,052.20 is: 764,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,980.20 : 1,236,747.90 = 509,052.20 : x
  2. Step 2: Convert to fraction form
    823,980.20/1,236,747.90 = 509,052.20/x
  3. Step 3: Cross multiply
    823,980.20x = 1,236,747.90 × 509,052.20
  4. Step 4: Simplify right side
    823,980.20x = 629,569,239,340.38
  5. Step 5: Solve for x
    x = 629,569,239,340.38/823,980.20
  6. Step 6: Final answer
    x = 764,058.70

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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.