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Finding the Fourth Proportional to 509,968.10, 764,952.15 and 454,855.70

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Solution

The fourth proportional to 509,968.10, 764,952.15 and 454,855.70 is: 682,283.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,968.10 : 764,952.15 = 454,855.70 : x
  2. Step 2: Convert to fraction form
    509,968.10/764,952.15 = 454,855.70/x
  3. Step 3: Cross multiply
    509,968.10x = 764,952.15 × 454,855.70
  4. Step 4: Simplify right side
    509,968.10x = 347,942,845,654.76
  5. Step 5: Solve for x
    x = 347,942,845,654.76/509,968.10
  6. Step 6: Final answer
    x = 682,283.55

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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.