Home / 381,724.40-571,420.20-297,743.60

Finding the Fourth Proportional to 381,724.40, 571,420.20 and 297,743.60

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Solution

The fourth proportional to 381,724.40, 571,420.20 and 297,743.60 is: 445,705.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,724.40 : 571,420.20 = 297,743.60 : x
  2. Step 2: Convert to fraction form
    381,724.40/571,420.20 = 297,743.60/x
  3. Step 3: Cross multiply
    381,724.40x = 571,420.20 × 297,743.60
  4. Step 4: Simplify right side
    381,724.40x = 170,136,707,460.72
  5. Step 5: Solve for x
    x = 170,136,707,460.72/381,724.40
  6. Step 6: Final answer
    x = 445,705.61

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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.