Home / 840,015.22-1,259,628.76-307,163.66

Finding the Fourth Proportional to 840,015.22, 1,259,628.76 and 307,163.66

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Solution

The fourth proportional to 840,015.22, 1,259,628.76 and 307,163.66 is: 460,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,015.22 : 1,259,628.76 = 307,163.66 : x
  2. Step 2: Convert to fraction form
    840,015.22/1,259,628.76 = 307,163.66/x
  3. Step 3: Cross multiply
    840,015.22x = 1,259,628.76 × 307,163.66
  4. Step 4: Simplify right side
    840,015.22x = 386,912,180,162.86
  5. Step 5: Solve for x
    x = 386,912,180,162.86/840,015.22
  6. Step 6: Final answer
    x = 460,601.39

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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.