Home / 1,152,168.87-1,589,992.08-642,871.26

Finding the Fourth Proportional to 1,152,168.87, 1,589,992.08 and 642,871.26

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Solution

The fourth proportional to 1,152,168.87, 1,589,992.08 and 642,871.26 is: 887,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,168.87 : 1,589,992.08 = 642,871.26 : x
  2. Step 2: Convert to fraction form
    1,152,168.87/1,589,992.08 = 642,871.26/x
  3. Step 3: Cross multiply
    1,152,168.87x = 1,589,992.08 × 642,871.26
  4. Step 4: Simplify right side
    1,152,168.87x = 1,022,160,211,859.62
  5. Step 5: Solve for x
    x = 1,022,160,211,859.62/1,152,168.87
  6. Step 6: Final answer
    x = 887,161.80

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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.