Home / 479,336.45-661,723.99-298,106.78

Finding the Fourth Proportional to 479,336.45, 661,723.99 and 298,106.78

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Solution

The fourth proportional to 479,336.45, 661,723.99 and 298,106.78 is: 411,536.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,336.45 : 661,723.99 = 298,106.78 : x
  2. Step 2: Convert to fraction form
    479,336.45/661,723.99 = 298,106.78/x
  3. Step 3: Cross multiply
    479,336.45x = 661,723.99 × 298,106.78
  4. Step 4: Simplify right side
    479,336.45x = 197,264,407,907.65
  5. Step 5: Solve for x
    x = 197,264,407,907.65/479,336.45
  6. Step 6: Final answer
    x = 411,536.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.