Home / 1,319,773.60-1,979,660.40-987,997.60

Finding the Fourth Proportional to 1,319,773.60, 1,979,660.40 and 987,997.60

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Solution

The fourth proportional to 1,319,773.60, 1,979,660.40 and 987,997.60 is: 1,481,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,773.60 : 1,979,660.40 = 987,997.60 : x
  2. Step 2: Convert to fraction form
    1,319,773.60/1,979,660.40 = 987,997.60/x
  3. Step 3: Cross multiply
    1,319,773.60x = 1,979,660.40 × 987,997.60
  4. Step 4: Simplify right side
    1,319,773.60x = 1,955,899,724,015.04
  5. Step 5: Solve for x
    x = 1,955,899,724,015.04/1,319,773.60
  6. Step 6: Final answer
    x = 1,481,996.40

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Similar ratio
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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.