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Finding the Fourth Proportional to 509,955.20, 764,673.60 and 299,657.60

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Solution

The fourth proportional to 509,955.20, 764,673.60 and 299,657.60 is: 449,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,955.20 : 764,673.60 = 299,657.60 : x
  2. Step 2: Convert to fraction form
    509,955.20/764,673.60 = 299,657.60/x
  3. Step 3: Cross multiply
    509,955.20x = 764,673.60 × 299,657.60
  4. Step 4: Simplify right side
    509,955.20x = 229,140,255,759.36
  5. Step 5: Solve for x
    x = 229,140,255,759.36/509,955.20
  6. Step 6: Final answer
    x = 449,334.09

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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.