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Finding the Fourth Proportional to 605,432, 907,583.44 and 205,799.68

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Solution

The fourth proportional to 605,432, 907,583.44 and 205,799.68 is: 308,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,432 : 907,583.44 = 205,799.68 : x
  2. Step 2: Convert to fraction form
    605,432/907,583.44 = 205,799.68/x
  3. Step 3: Cross multiply
    605,432x = 907,583.44 × 205,799.68
  4. Step 4: Simplify right side
    605,432x = 186,780,381,525.30
  5. Step 5: Solve for x
    x = 186,780,381,525.30/605,432
  6. Step 6: Final answer
    x = 308,507.61

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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.