Home / 773,979.60-1,161,179.80-324,464.40

Finding the Fourth Proportional to 773,979.60, 1,161,179.80 and 324,464.40

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Solution

The fourth proportional to 773,979.60, 1,161,179.80 and 324,464.40 is: 486,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,979.60 : 1,161,179.80 = 324,464.40 : x
  2. Step 2: Convert to fraction form
    773,979.60/1,161,179.80 = 324,464.40/x
  3. Step 3: Cross multiply
    773,979.60x = 1,161,179.80 × 324,464.40
  4. Step 4: Simplify right side
    773,979.60x = 376,761,507,099.12
  5. Step 5: Solve for x
    x = 376,761,507,099.12/773,979.60
  6. Step 6: Final answer
    x = 486,784.80

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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.