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Finding the Fourth Proportional to 509,929.20, 764,893.80 and 454,816.80

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Solution

The fourth proportional to 509,929.20, 764,893.80 and 454,816.80 is: 682,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,929.20 : 764,893.80 = 454,816.80 : x
  2. Step 2: Convert to fraction form
    509,929.20/764,893.80 = 454,816.80/x
  3. Step 3: Cross multiply
    509,929.20x = 764,893.80 × 454,816.80
  4. Step 4: Simplify right side
    509,929.20x = 347,886,550,455.84
  5. Step 5: Solve for x
    x = 347,886,550,455.84/509,929.20
  6. Step 6: Final answer
    x = 682,225.20

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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.