Home / 1,261,221.57-1,740,522.74-688,298.58

Finding the Fourth Proportional to 1,261,221.57, 1,740,522.74 and 688,298.58

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Solution

The fourth proportional to 1,261,221.57, 1,740,522.74 and 688,298.58 is: 949,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,221.57 : 1,740,522.74 = 688,298.58 : x
  2. Step 2: Convert to fraction form
    1,261,221.57/1,740,522.74 = 688,298.58/x
  3. Step 3: Cross multiply
    1,261,221.57x = 1,740,522.74 × 688,298.58
  4. Step 4: Simplify right side
    1,261,221.57x = 1,197,999,326,958.22
  5. Step 5: Solve for x
    x = 1,197,999,326,958.22/1,261,221.57
  6. Step 6: Final answer
    x = 949,872.22

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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.