Home / 1,261,699.20-1,741,185.72-717,821.46

Finding the Fourth Proportional to 1,261,699.20, 1,741,185.72 and 717,821.46

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Solution

The fourth proportional to 1,261,699.20, 1,741,185.72 and 717,821.46 is: 990,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,699.20 : 1,741,185.72 = 717,821.46 : x
  2. Step 2: Convert to fraction form
    1,261,699.20/1,741,185.72 = 717,821.46/x
  3. Step 3: Cross multiply
    1,261,699.20x = 1,741,185.72 × 717,821.46
  4. Step 4: Simplify right side
    1,261,699.20x = 1,249,860,475,661.55
  5. Step 5: Solve for x
    x = 1,249,860,475,661.55/1,261,699.20
  6. Step 6: Final answer
    x = 990,616.84

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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.