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Finding the Fourth Proportional to 492,816.60, 739,079.10 and 193,124.70

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Solution

The fourth proportional to 492,816.60, 739,079.10 and 193,124.70 is: 289,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,816.60 : 739,079.10 = 193,124.70 : x
  2. Step 2: Convert to fraction form
    492,816.60/739,079.10 = 193,124.70/x
  3. Step 3: Cross multiply
    492,816.60x = 739,079.10 × 193,124.70
  4. Step 4: Simplify right side
    492,816.60x = 142,734,429,463.77
  5. Step 5: Solve for x
    x = 142,734,429,463.77/492,816.60
  6. Step 6: Final answer
    x = 289,629.91

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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.