Home / 1,261,219.96-1,740,520.74-688,297.24

Finding the Fourth Proportional to 1,261,219.96, 1,740,520.74 and 688,297.24

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Solution

The fourth proportional to 1,261,219.96, 1,740,520.74 and 688,297.24 is: 949,870.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,219.96 : 1,740,520.74 = 688,297.24 : x
  2. Step 2: Convert to fraction form
    1,261,219.96/1,740,520.74 = 688,297.24/x
  3. Step 3: Cross multiply
    1,261,219.96x = 1,740,520.74 × 688,297.24
  4. Step 4: Simplify right side
    1,261,219.96x = 1,197,995,621,504.76
  5. Step 5: Solve for x
    x = 1,197,995,621,504.76/1,261,219.96
  6. Step 6: Final answer
    x = 949,870.49

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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.