Home / 1,098,557.72-1,647,234.54-340,188.65

Finding the Fourth Proportional to 1,098,557.72, 1,647,234.54 and 340,188.65

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Solution

The fourth proportional to 1,098,557.72, 1,647,234.54 and 340,188.65 is: 510,096.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,557.72 : 1,647,234.54 = 340,188.65 : x
  2. Step 2: Convert to fraction form
    1,098,557.72/1,647,234.54 = 340,188.65/x
  3. Step 3: Cross multiply
    1,098,557.72x = 1,647,234.54 × 340,188.65
  4. Step 4: Simplify right side
    1,098,557.72x = 560,370,492,336.93
  5. Step 5: Solve for x
    x = 560,370,492,336.93/1,098,557.72
  6. Step 6: Final answer
    x = 510,096.54

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Double scale
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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.