Home / 2,189,087.80-3,283,631.70-769,287.40

Finding the Fourth Proportional to 2,189,087.80, 3,283,631.70 and 769,287.40

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Solution

The fourth proportional to 2,189,087.80, 3,283,631.70 and 769,287.40 is: 1,153,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,087.80 : 3,283,631.70 = 769,287.40 : x
  2. Step 2: Convert to fraction form
    2,189,087.80/3,283,631.70 = 769,287.40/x
  3. Step 3: Cross multiply
    2,189,087.80x = 3,283,631.70 × 769,287.40
  4. Step 4: Simplify right side
    2,189,087.80x = 2,526,056,493,050.58
  5. Step 5: Solve for x
    x = 2,526,056,493,050.58/2,189,087.80
  6. Step 6: Final answer
    x = 1,153,931.10

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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.