Home / 857,355.42-1,285,624.89-324,536.61

Finding the Fourth Proportional to 857,355.42, 1,285,624.89 and 324,536.61

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Solution

The fourth proportional to 857,355.42, 1,285,624.89 and 324,536.61 is: 486,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,355.42 : 1,285,624.89 = 324,536.61 : x
  2. Step 2: Convert to fraction form
    857,355.42/1,285,624.89 = 324,536.61/x
  3. Step 3: Cross multiply
    857,355.42x = 1,285,624.89 × 324,536.61
  4. Step 4: Simplify right side
    857,355.42x = 417,232,340,208.92
  5. Step 5: Solve for x
    x = 417,232,340,208.92/857,355.42
  6. Step 6: Final answer
    x = 486,650.38

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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.