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Finding the Fourth Proportional to 638,795.68, 958,357.68 and 239,441.92

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Solution

The fourth proportional to 638,795.68, 958,357.68 and 239,441.92 is: 359,224.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,795.68 : 958,357.68 = 239,441.92 : x
  2. Step 2: Convert to fraction form
    638,795.68/958,357.68 = 239,441.92/x
  3. Step 3: Cross multiply
    638,795.68x = 958,357.68 × 239,441.92
  4. Step 4: Simplify right side
    638,795.68x = 229,471,002,945.95
  5. Step 5: Solve for x
    x = 229,471,002,945.95/638,795.68
  6. Step 6: Final answer
    x = 359,224.41

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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.