Home / 1,992,880.32-2,748,947.40-1,420,105.56

Finding the Fourth Proportional to 1,992,880.32, 2,748,947.40 and 1,420,105.56

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Solution

The fourth proportional to 1,992,880.32, 2,748,947.40 and 1,420,105.56 is: 1,958,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,880.32 : 2,748,947.40 = 1,420,105.56 : x
  2. Step 2: Convert to fraction form
    1,992,880.32/2,748,947.40 = 1,420,105.56/x
  3. Step 3: Cross multiply
    1,992,880.32x = 2,748,947.40 × 1,420,105.56
  4. Step 4: Simplify right side
    1,992,880.32x = 3,903,795,486,887.54
  5. Step 5: Solve for x
    x = 3,903,795,486,887.54/1,992,880.32
  6. Step 6: Final answer
    x = 1,958,871.01

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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.