Home / 494,771.83-742,206.35-139,788.61

Finding the Fourth Proportional to 494,771.83, 742,206.35 and 139,788.61

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Solution

The fourth proportional to 494,771.83, 742,206.35 and 139,788.61 is: 209,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,771.83 : 742,206.35 = 139,788.61 : x
  2. Step 2: Convert to fraction form
    494,771.83/742,206.35 = 139,788.61/x
  3. Step 3: Cross multiply
    494,771.83x = 742,206.35 × 139,788.61
  4. Step 4: Simplify right side
    494,771.83x = 103,751,993,999.67
  5. Step 5: Solve for x
    x = 103,751,993,999.67/494,771.83
  6. Step 6: Final answer
    x = 209,696.65

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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.