Home / 766,753.95-1,150,130.76-205,788.45

Finding the Fourth Proportional to 766,753.95, 1,150,130.76 and 205,788.45

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Solution

The fourth proportional to 766,753.95, 1,150,130.76 and 205,788.45 is: 308,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,753.95 : 1,150,130.76 = 205,788.45 : x
  2. Step 2: Convert to fraction form
    766,753.95/1,150,130.76 = 205,788.45/x
  3. Step 3: Cross multiply
    766,753.95x = 1,150,130.76 × 205,788.45
  4. Step 4: Simplify right side
    766,753.95x = 236,683,622,856.44
  5. Step 5: Solve for x
    x = 236,683,622,856.44/766,753.95
  6. Step 6: Final answer
    x = 308,682.63

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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.