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Finding the Fourth Proportional to 492,740.10, 739,110.15 and 193,230.45

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Solution

The fourth proportional to 492,740.10, 739,110.15 and 193,230.45 is: 289,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,740.10 : 739,110.15 = 193,230.45 : x
  2. Step 2: Convert to fraction form
    492,740.10/739,110.15 = 193,230.45/x
  3. Step 3: Cross multiply
    492,740.10x = 739,110.15 × 193,230.45
  4. Step 4: Simplify right side
    492,740.10x = 142,818,586,884.07
  5. Step 5: Solve for x
    x = 142,818,586,884.07/492,740.10
  6. Step 6: Final answer
    x = 289,845.68

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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.