Home / 490,739.69-736,162.32-206,459.19

Finding the Fourth Proportional to 490,739.69, 736,162.32 and 206,459.19

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Solution

The fourth proportional to 490,739.69, 736,162.32 and 206,459.19 is: 309,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,739.69 : 736,162.32 = 206,459.19 : x
  2. Step 2: Convert to fraction form
    490,739.69/736,162.32 = 206,459.19/x
  3. Step 3: Cross multiply
    490,739.69x = 736,162.32 × 206,459.19
  4. Step 4: Simplify right side
    490,739.69x = 151,987,476,295.72
  5. Step 5: Solve for x
    x = 151,987,476,295.72/490,739.69
  6. Step 6: Final answer
    x = 309,711.00

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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.