Home / 792,138.30-1,188,207.45-476,432.70

Finding the Fourth Proportional to 792,138.30, 1,188,207.45 and 476,432.70

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Solution

The fourth proportional to 792,138.30, 1,188,207.45 and 476,432.70 is: 714,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,138.30 : 1,188,207.45 = 476,432.70 : x
  2. Step 2: Convert to fraction form
    792,138.30/1,188,207.45 = 476,432.70/x
  3. Step 3: Cross multiply
    792,138.30x = 1,188,207.45 × 476,432.70
  4. Step 4: Simplify right side
    792,138.30x = 566,100,883,563.62
  5. Step 5: Solve for x
    x = 566,100,883,563.62/792,138.30
  6. Step 6: Final answer
    x = 714,649.05

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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.