Home / 1,055,016.96-1,578,004.21-978,437.94

Finding the Fourth Proportional to 1,055,016.96, 1,578,004.21 and 978,437.94

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Solution

The fourth proportional to 1,055,016.96, 1,578,004.21 and 978,437.94 is: 1,463,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,016.96 : 1,578,004.21 = 978,437.94 : x
  2. Step 2: Convert to fraction form
    1,055,016.96/1,578,004.21 = 978,437.94/x
  3. Step 3: Cross multiply
    1,055,016.96x = 1,578,004.21 × 978,437.94
  4. Step 4: Simplify right side
    1,055,016.96x = 1,543,979,188,543.73
  5. Step 5: Solve for x
    x = 1,543,979,188,543.73/1,055,016.96
  6. Step 6: Final answer
    x = 1,463,463.86

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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.