Home / 1,261,076.12-1,740,327.03-688,147.73

Finding the Fourth Proportional to 1,261,076.12, 1,740,327.03 and 688,147.73

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Solution

The fourth proportional to 1,261,076.12, 1,740,327.03 and 688,147.73 is: 949,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,076.12 : 1,740,327.03 = 688,147.73 : x
  2. Step 2: Convert to fraction form
    1,261,076.12/1,740,327.03 = 688,147.73/x
  3. Step 3: Cross multiply
    1,261,076.12x = 1,740,327.03 × 688,147.73
  4. Step 4: Simplify right side
    1,261,076.12x = 1,197,602,086,450.51
  5. Step 5: Solve for x
    x = 1,197,602,086,450.51/1,261,076.12
  6. Step 6: Final answer
    x = 949,666.77

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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.