Home / 1,152,016.36-1,589,724.48-642,620.32

Finding the Fourth Proportional to 1,152,016.36, 1,589,724.48 and 642,620.32

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Solution

The fourth proportional to 1,152,016.36, 1,589,724.48 and 642,620.32 is: 886,783.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,016.36 : 1,589,724.48 = 642,620.32 : x
  2. Step 2: Convert to fraction form
    1,152,016.36/1,589,724.48 = 642,620.32/x
  3. Step 3: Cross multiply
    1,152,016.36x = 1,589,724.48 × 642,620.32
  4. Step 4: Simplify right side
    1,152,016.36x = 1,021,589,254,049.43
  5. Step 5: Solve for x
    x = 1,021,589,254,049.43/1,152,016.36
  6. Step 6: Final answer
    x = 886,783.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.