Home / 2,688,629.80-4,032,944.70-1,890,812.20

Finding the Fourth Proportional to 2,688,629.80, 4,032,944.70 and 1,890,812.20

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Solution

The fourth proportional to 2,688,629.80, 4,032,944.70 and 1,890,812.20 is: 2,836,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,629.80 : 4,032,944.70 = 1,890,812.20 : x
  2. Step 2: Convert to fraction form
    2,688,629.80/4,032,944.70 = 1,890,812.20/x
  3. Step 3: Cross multiply
    2,688,629.80x = 4,032,944.70 × 1,890,812.20
  4. Step 4: Simplify right side
    2,688,629.80x = 7,625,541,040,685.34
  5. Step 5: Solve for x
    x = 7,625,541,040,685.34/2,688,629.80
  6. Step 6: Final answer
    x = 2,836,218.30

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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.