Home / 1,325,087.52-1,828,859.04-781,190.88

Finding the Fourth Proportional to 1,325,087.52, 1,828,859.04 and 781,190.88

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Solution

The fourth proportional to 1,325,087.52, 1,828,859.04 and 781,190.88 is: 1,078,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,087.52 : 1,828,859.04 = 781,190.88 : x
  2. Step 2: Convert to fraction form
    1,325,087.52/1,828,859.04 = 781,190.88/x
  3. Step 3: Cross multiply
    1,325,087.52x = 1,828,859.04 × 781,190.88
  4. Step 4: Simplify right side
    1,325,087.52x = 1,428,688,002,853.56
  5. Step 5: Solve for x
    x = 1,428,688,002,853.56/1,325,087.52
  6. Step 6: Final answer
    x = 1,078,183.88

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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.