Home / 486,975.89-672,093.48-280,240.04

Finding the Fourth Proportional to 486,975.89, 672,093.48 and 280,240.04

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Solution

The fourth proportional to 486,975.89, 672,093.48 and 280,240.04 is: 386,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,975.89 : 672,093.48 = 280,240.04 : x
  2. Step 2: Convert to fraction form
    486,975.89/672,093.48 = 280,240.04/x
  3. Step 3: Cross multiply
    486,975.89x = 672,093.48 × 280,240.04
  4. Step 4: Simplify right side
    486,975.89x = 188,347,500,358.47
  5. Step 5: Solve for x
    x = 188,347,500,358.47/486,975.89
  6. Step 6: Final answer
    x = 386,769.67

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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.