Home / 1,261,241.32-1,740,549.72-688,318.44

Finding the Fourth Proportional to 1,261,241.32, 1,740,549.72 and 688,318.44

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Solution

The fourth proportional to 1,261,241.32, 1,740,549.72 and 688,318.44 is: 949,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,241.32 : 1,740,549.72 = 688,318.44 : x
  2. Step 2: Convert to fraction form
    1,261,241.32/1,740,549.72 = 688,318.44/x
  3. Step 3: Cross multiply
    1,261,241.32x = 1,740,549.72 × 688,318.44
  4. Step 4: Simplify right side
    1,261,241.32x = 1,198,052,468,012.84
  5. Step 5: Solve for x
    x = 1,198,052,468,012.84/1,261,241.32
  6. Step 6: Final answer
    x = 949,899.48

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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.