Home / 688,375.46-1,032,407.25-261,759.20

Finding the Fourth Proportional to 688,375.46, 1,032,407.25 and 261,759.20

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Solution

The fourth proportional to 688,375.46, 1,032,407.25 and 261,759.20 is: 392,579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,375.46 : 1,032,407.25 = 261,759.20 : x
  2. Step 2: Convert to fraction form
    688,375.46/1,032,407.25 = 261,759.20/x
  3. Step 3: Cross multiply
    688,375.46x = 1,032,407.25 × 261,759.20
  4. Step 4: Simplify right side
    688,375.46x = 270,242,090,672.16
  5. Step 5: Solve for x
    x = 270,242,090,672.16/688,375.46
  6. Step 6: Final answer
    x = 392,579.50

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Double scale
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Similar ratio
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1.5x scale

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.