Home / 857,568.10-1,285,430.55-324,883.30

Finding the Fourth Proportional to 857,568.10, 1,285,430.55 and 324,883.30

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Solution

The fourth proportional to 857,568.10, 1,285,430.55 and 324,883.30 is: 486,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,568.10 : 1,285,430.55 = 324,883.30 : x
  2. Step 2: Convert to fraction form
    857,568.10/1,285,430.55 = 324,883.30/x
  3. Step 3: Cross multiply
    857,568.10x = 1,285,430.55 × 324,883.30
  4. Step 4: Simplify right side
    857,568.10x = 417,614,919,004.82
  5. Step 5: Solve for x
    x = 417,614,919,004.82/857,568.10
  6. Step 6: Final answer
    x = 486,975.81

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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.