Home / 445,525.80-668,279.10-296,719.40

Finding the Fourth Proportional to 445,525.80, 668,279.10 and 296,719.40

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Solution

The fourth proportional to 445,525.80, 668,279.10 and 296,719.40 is: 445,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,525.80 : 668,279.10 = 296,719.40 : x
  2. Step 2: Convert to fraction form
    445,525.80/668,279.10 = 296,719.40/x
  3. Step 3: Cross multiply
    445,525.80x = 668,279.10 × 296,719.40
  4. Step 4: Simplify right side
    445,525.80x = 198,291,373,584.54
  5. Step 5: Solve for x
    x = 198,291,373,584.54/445,525.80
  6. Step 6: Final answer
    x = 445,072.71

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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.