Home / 813,015.13-1,218,192.27-492,194.59

Finding the Fourth Proportional to 813,015.13, 1,218,192.27 and 492,194.59

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Solution

The fourth proportional to 813,015.13, 1,218,192.27 and 492,194.59 is: 737,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,015.13 : 1,218,192.27 = 492,194.59 : x
  2. Step 2: Convert to fraction form
    813,015.13/1,218,192.27 = 492,194.59/x
  3. Step 3: Cross multiply
    813,015.13x = 1,218,192.27 × 492,194.59
  4. Step 4: Simplify right side
    813,015.13x = 599,587,644,873.82
  5. Step 5: Solve for x
    x = 599,587,644,873.82/813,015.13
  6. Step 6: Final answer
    x = 737,486.45

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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.