Home / 1,261,187.12-1,740,475.24-688,264.24

Finding the Fourth Proportional to 1,261,187.12, 1,740,475.24 and 688,264.24

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Solution

The fourth proportional to 1,261,187.12, 1,740,475.24 and 688,264.24 is: 949,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,187.12 : 1,740,475.24 = 688,264.24 : x
  2. Step 2: Convert to fraction form
    1,261,187.12/1,740,475.24 = 688,264.24/x
  3. Step 3: Cross multiply
    1,261,187.12x = 1,740,475.24 × 688,264.24
  4. Step 4: Simplify right side
    1,261,187.12x = 1,197,906,868,297.42
  5. Step 5: Solve for x
    x = 1,197,906,868,297.42/1,261,187.12
  6. Step 6: Final answer
    x = 949,824.85

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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.