Home / 1,261,264.25-1,740,544.21-688,304.43

Finding the Fourth Proportional to 1,261,264.25, 1,740,544.21 and 688,304.43

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Solution

The fourth proportional to 1,261,264.25, 1,740,544.21 and 688,304.43 is: 949,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,264.25 : 1,740,544.21 = 688,304.43 : x
  2. Step 2: Convert to fraction form
    1,261,264.25/1,740,544.21 = 688,304.43/x
  3. Step 3: Cross multiply
    1,261,264.25x = 1,740,544.21 × 688,304.43
  4. Step 4: Simplify right side
    1,261,264.25x = 1,198,024,291,214.23
  5. Step 5: Solve for x
    x = 1,198,024,291,214.23/1,261,264.25
  6. Step 6: Final answer
    x = 949,859.86

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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.