Home / 1,215,891.60-1,824,874.20-543,008.40

Finding the Fourth Proportional to 1,215,891.60, 1,824,874.20 and 543,008.40

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Solution

The fourth proportional to 1,215,891.60, 1,824,874.20 and 543,008.40 is: 814,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,891.60 : 1,824,874.20 = 543,008.40 : x
  2. Step 2: Convert to fraction form
    1,215,891.60/1,824,874.20 = 543,008.40/x
  3. Step 3: Cross multiply
    1,215,891.60x = 1,824,874.20 × 543,008.40
  4. Step 4: Simplify right side
    1,215,891.60x = 990,922,019,543.28
  5. Step 5: Solve for x
    x = 990,922,019,543.28/1,215,891.60
  6. Step 6: Final answer
    x = 814,975.63

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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.