Home / 507,219.06-699,983.40-280,864.56

Finding the Fourth Proportional to 507,219.06, 699,983.40 and 280,864.56

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Solution

The fourth proportional to 507,219.06, 699,983.40 and 280,864.56 is: 387,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,219.06 : 699,983.40 = 280,864.56 : x
  2. Step 2: Convert to fraction form
    507,219.06/699,983.40 = 280,864.56/x
  3. Step 3: Cross multiply
    507,219.06x = 699,983.40 × 280,864.56
  4. Step 4: Simplify right side
    507,219.06x = 196,600,529,648.30
  5. Step 5: Solve for x
    x = 196,600,529,648.30/507,219.06
  6. Step 6: Final answer
    x = 387,604.78

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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.