Home / 426,370.84-639,369.05-159,944.52

Finding the Fourth Proportional to 426,370.84, 639,369.05 and 159,944.52

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Solution

The fourth proportional to 426,370.84, 639,369.05 and 159,944.52 is: 239,846.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,370.84 : 639,369.05 = 159,944.52 : x
  2. Step 2: Convert to fraction form
    426,370.84/639,369.05 = 159,944.52/x
  3. Step 3: Cross multiply
    426,370.84x = 639,369.05 × 159,944.52
  4. Step 4: Simplify right side
    426,370.84x = 102,263,577,403.02
  5. Step 5: Solve for x
    x = 102,263,577,403.02/426,370.84
  6. Step 6: Final answer
    x = 239,846.56

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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.