Home / 492,790.20-738,638.55-193,171.20

Finding the Fourth Proportional to 492,790.20, 738,638.55 and 193,171.20

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Solution

The fourth proportional to 492,790.20, 738,638.55 and 193,171.20 is: 289,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,790.20 : 738,638.55 = 193,171.20 : x
  2. Step 2: Convert to fraction form
    492,790.20/738,638.55 = 193,171.20/x
  3. Step 3: Cross multiply
    492,790.20x = 738,638.55 × 193,171.20
  4. Step 4: Simplify right side
    492,790.20x = 142,683,695,069.76
  5. Step 5: Solve for x
    x = 142,683,695,069.76/492,790.20
  6. Step 6: Final answer
    x = 289,542.48

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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.