Home / 1,055,015.96-1,578,002.72-978,436.94

Finding the Fourth Proportional to 1,055,015.96, 1,578,002.72 and 978,436.94

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Solution

The fourth proportional to 1,055,015.96, 1,578,002.72 and 978,436.94 is: 1,463,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,015.96 : 1,578,002.72 = 978,436.94 : x
  2. Step 2: Convert to fraction form
    1,055,015.96/1,578,002.72 = 978,436.94/x
  3. Step 3: Cross multiply
    1,055,015.96x = 1,578,002.72 × 978,436.94
  4. Step 4: Simplify right side
    1,055,015.96x = 1,543,976,139,886.28
  5. Step 5: Solve for x
    x = 1,543,976,139,886.28/1,055,015.96
  6. Step 6: Final answer
    x = 1,463,462.36

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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.