Home / 1,152,170.88-1,589,994.84-642,873.26

Finding the Fourth Proportional to 1,152,170.88, 1,589,994.84 and 642,873.26

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Solution

The fourth proportional to 1,152,170.88, 1,589,994.84 and 642,873.26 is: 887,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,170.88 : 1,589,994.84 = 642,873.26 : x
  2. Step 2: Convert to fraction form
    1,152,170.88/1,589,994.84 = 642,873.26/x
  3. Step 3: Cross multiply
    1,152,170.88x = 1,589,994.84 × 642,873.26
  4. Step 4: Simplify right side
    1,152,170.88x = 1,022,165,166,173.98
  5. Step 5: Solve for x
    x = 1,022,165,166,173.98/1,152,170.88
  6. Step 6: Final answer
    x = 887,164.56

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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.