Home / 1,261,076.77-1,740,327.95-688,148.38

Finding the Fourth Proportional to 1,261,076.77, 1,740,327.95 and 688,148.38

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Solution

The fourth proportional to 1,261,076.77, 1,740,327.95 and 688,148.38 is: 949,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,076.77 : 1,740,327.95 = 688,148.38 : x
  2. Step 2: Convert to fraction form
    1,261,076.77/1,740,327.95 = 688,148.38/x
  3. Step 3: Cross multiply
    1,261,076.77x = 1,740,327.95 × 688,148.38
  4. Step 4: Simplify right side
    1,261,076.77x = 1,197,603,851,669.66
  5. Step 5: Solve for x
    x = 1,197,603,851,669.66/1,261,076.77
  6. Step 6: Final answer
    x = 949,667.68

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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.