Home / 1,434,187.37-1,979,190.51-780,817.87

Finding the Fourth Proportional to 1,434,187.37, 1,979,190.51 and 780,817.87

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Solution

The fourth proportional to 1,434,187.37, 1,979,190.51 and 780,817.87 is: 1,077,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,187.37 : 1,979,190.51 = 780,817.87 : x
  2. Step 2: Convert to fraction form
    1,434,187.37/1,979,190.51 = 780,817.87/x
  3. Step 3: Cross multiply
    1,434,187.37x = 1,979,190.51 × 780,817.87
  4. Step 4: Simplify right side
    1,434,187.37x = 1,545,387,311,147.49
  5. Step 5: Solve for x
    x = 1,545,387,311,147.49/1,434,187.37
  6. Step 6: Final answer
    x = 1,077,535.16

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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.