Home / 766,820.40-1,150,230.60-487,575.60

Finding the Fourth Proportional to 766,820.40, 1,150,230.60 and 487,575.60

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Solution

The fourth proportional to 766,820.40, 1,150,230.60 and 487,575.60 is: 731,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,820.40 : 1,150,230.60 = 487,575.60 : x
  2. Step 2: Convert to fraction form
    766,820.40/1,150,230.60 = 487,575.60/x
  3. Step 3: Cross multiply
    766,820.40x = 1,150,230.60 × 487,575.60
  4. Step 4: Simplify right side
    766,820.40x = 560,824,374,933.36
  5. Step 5: Solve for x
    x = 560,824,374,933.36/766,820.40
  6. Step 6: Final answer
    x = 731,363.40

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Half scale
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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.