Home / 688,375.52-1,032,407.35-261,759.25

Finding the Fourth Proportional to 688,375.52, 1,032,407.35 and 261,759.25

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Solution

The fourth proportional to 688,375.52, 1,032,407.35 and 261,759.25 is: 392,579.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,375.52 : 1,032,407.35 = 261,759.25 : x
  2. Step 2: Convert to fraction form
    688,375.52/1,032,407.35 = 261,759.25/x
  3. Step 3: Cross multiply
    688,375.52x = 1,032,407.35 × 261,759.25
  4. Step 4: Simplify right side
    688,375.52x = 270,242,173,630.49
  5. Step 5: Solve for x
    x = 270,242,173,630.49/688,375.52
  6. Step 6: Final answer
    x = 392,579.58

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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.