Home / 840,864.60-1,260,546.72-308,261.20

Finding the Fourth Proportional to 840,864.60, 1,260,546.72 and 308,261.20

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Solution

The fourth proportional to 840,864.60, 1,260,546.72 and 308,261.20 is: 462,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,864.60 : 1,260,546.72 = 308,261.20 : x
  2. Step 2: Convert to fraction form
    840,864.60/1,260,546.72 = 308,261.20/x
  3. Step 3: Cross multiply
    840,864.60x = 1,260,546.72 × 308,261.20
  4. Step 4: Simplify right side
    840,864.60x = 388,577,644,563.26
  5. Step 5: Solve for x
    x = 388,577,644,563.26/840,864.60
  6. Step 6: Final answer
    x = 462,116.78

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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.