Home / 505,966.40-758,512.20-306,074.60

Finding the Fourth Proportional to 505,966.40, 758,512.20 and 306,074.60

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Solution

The fourth proportional to 505,966.40, 758,512.20 and 306,074.60 is: 458,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,966.40 : 758,512.20 = 306,074.60 : x
  2. Step 2: Convert to fraction form
    505,966.40/758,512.20 = 306,074.60/x
  3. Step 3: Cross multiply
    505,966.40x = 758,512.20 × 306,074.60
  4. Step 4: Simplify right side
    505,966.40x = 232,161,318,210.12
  5. Step 5: Solve for x
    x = 232,161,318,210.12/505,966.40
  6. Step 6: Final answer
    x = 458,847.30

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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.