Home / 1,261,159.20-1,740,436.62-688,236.30

Finding the Fourth Proportional to 1,261,159.20, 1,740,436.62 and 688,236.30

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Solution

The fourth proportional to 1,261,159.20, 1,740,436.62 and 688,236.30 is: 949,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,159.20 : 1,740,436.62 = 688,236.30 : x
  2. Step 2: Convert to fraction form
    1,261,159.20/1,740,436.62 = 688,236.30/x
  3. Step 3: Cross multiply
    1,261,159.20x = 1,740,436.62 × 688,236.30
  4. Step 4: Simplify right side
    1,261,159.20x = 1,197,831,659,733.31
  5. Step 5: Solve for x
    x = 1,197,831,659,733.31/1,261,159.20
  6. Step 6: Final answer
    x = 949,786.24

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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.