Home / 688,394.21-1,032,435.38-261,777.94

Finding the Fourth Proportional to 688,394.21, 1,032,435.38 and 261,777.94

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Solution

The fourth proportional to 688,394.21, 1,032,435.38 and 261,777.94 is: 392,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,394.21 : 1,032,435.38 = 261,777.94 : x
  2. Step 2: Convert to fraction form
    688,394.21/1,032,435.38 = 261,777.94/x
  3. Step 3: Cross multiply
    688,394.21x = 1,032,435.38 × 261,777.94
  4. Step 4: Simplify right side
    688,394.21x = 270,268,805,032.87
  5. Step 5: Solve for x
    x = 270,268,805,032.87/688,394.21
  6. Step 6: Final answer
    x = 392,607.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.