Home / 1,419,087.80-2,128,631.70-577,206.20

Finding the Fourth Proportional to 1,419,087.80, 2,128,631.70 and 577,206.20

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Solution

The fourth proportional to 1,419,087.80, 2,128,631.70 and 577,206.20 is: 865,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,087.80 : 2,128,631.70 = 577,206.20 : x
  2. Step 2: Convert to fraction form
    1,419,087.80/2,128,631.70 = 577,206.20/x
  3. Step 3: Cross multiply
    1,419,087.80x = 2,128,631.70 × 577,206.20
  4. Step 4: Simplify right side
    1,419,087.80x = 1,228,659,414,756.54
  5. Step 5: Solve for x
    x = 1,228,659,414,756.54/1,419,087.80
  6. Step 6: Final answer
    x = 865,809.30

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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.