Home / 840,836.50-1,260,504.79-308,233.20

Finding the Fourth Proportional to 840,836.50, 1,260,504.79 and 308,233.20

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Solution

The fourth proportional to 840,836.50, 1,260,504.79 and 308,233.20 is: 462,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,836.50 : 1,260,504.79 = 308,233.20 : x
  2. Step 2: Convert to fraction form
    840,836.50/1,260,504.79 = 308,233.20/x
  3. Step 3: Cross multiply
    840,836.50x = 1,260,504.79 × 308,233.20
  4. Step 4: Simplify right side
    840,836.50x = 388,529,421,903.00
  5. Step 5: Solve for x
    x = 388,529,421,903.00/840,836.50
  6. Step 6: Final answer
    x = 462,074.88

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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.