Home / 3,178,487.22-4,386,260.68-1,728,219.18

Finding the Fourth Proportional to 3,178,487.22, 4,386,260.68 and 1,728,219.18

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Solution

The fourth proportional to 3,178,487.22, 4,386,260.68 and 1,728,219.18 is: 2,384,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,487.22 : 4,386,260.68 = 1,728,219.18 : x
  2. Step 2: Convert to fraction form
    3,178,487.22/4,386,260.68 = 1,728,219.18/x
  3. Step 3: Cross multiply
    3,178,487.22x = 4,386,260.68 × 1,728,219.18
  4. Step 4: Simplify right side
    3,178,487.22x = 7,580,419,835,655.84
  5. Step 5: Solve for x
    x = 7,580,419,835,655.84/3,178,487.22
  6. Step 6: Final answer
    x = 2,384,914.37

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.