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Finding the Fourth Proportional to 509,968.60, 764,952.90 and 454,856.20

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Solution

The fourth proportional to 509,968.60, 764,952.90 and 454,856.20 is: 682,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,968.60 : 764,952.90 = 454,856.20 : x
  2. Step 2: Convert to fraction form
    509,968.60/764,952.90 = 454,856.20/x
  3. Step 3: Cross multiply
    509,968.60x = 764,952.90 × 454,856.20
  4. Step 4: Simplify right side
    509,968.60x = 347,943,569,272.98
  5. Step 5: Solve for x
    x = 347,943,569,272.98/509,968.60
  6. Step 6: Final answer
    x = 682,284.30

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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.