Home / 724,979.20-1,087,468.80-325,811.20

Finding the Fourth Proportional to 724,979.20, 1,087,468.80 and 325,811.20

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Solution

The fourth proportional to 724,979.20, 1,087,468.80 and 325,811.20 is: 488,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,979.20 : 1,087,468.80 = 325,811.20 : x
  2. Step 2: Convert to fraction form
    724,979.20/1,087,468.80 = 325,811.20/x
  3. Step 3: Cross multiply
    724,979.20x = 1,087,468.80 × 325,811.20
  4. Step 4: Simplify right side
    724,979.20x = 354,309,514,690.56
  5. Step 5: Solve for x
    x = 354,309,514,690.56/724,979.20
  6. Step 6: Final answer
    x = 488,716.80

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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.