Home / 1,242,022.60-1,861,721.70-708,394.60

Finding the Fourth Proportional to 1,242,022.60, 1,861,721.70 and 708,394.60

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Solution

The fourth proportional to 1,242,022.60, 1,861,721.70 and 708,394.60 is: 1,061,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,022.60 : 1,861,721.70 = 708,394.60 : x
  2. Step 2: Convert to fraction form
    1,242,022.60/1,861,721.70 = 708,394.60/x
  3. Step 3: Cross multiply
    1,242,022.60x = 1,861,721.70 × 708,394.60
  4. Step 4: Simplify right side
    1,242,022.60x = 1,318,833,598,982.82
  5. Step 5: Solve for x
    x = 1,318,833,598,982.82/1,242,022.60
  6. Step 6: Final answer
    x = 1,061,843.48

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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.