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Finding the Fourth Proportional to 615,080.40, 922,620.60 and 517,102.80

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Solution

The fourth proportional to 615,080.40, 922,620.60 and 517,102.80 is: 775,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,080.40 : 922,620.60 = 517,102.80 : x
  2. Step 2: Convert to fraction form
    615,080.40/922,620.60 = 517,102.80/x
  3. Step 3: Cross multiply
    615,080.40x = 922,620.60 × 517,102.80
  4. Step 4: Simplify right side
    615,080.40x = 477,089,695,597.68
  5. Step 5: Solve for x
    x = 477,089,695,597.68/615,080.40
  6. Step 6: Final answer
    x = 775,654.20

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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.