Home / 451,780.12-623,351.92-270,423.12

Finding the Fourth Proportional to 451,780.12, 623,351.92 and 270,423.12

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Solution

The fourth proportional to 451,780.12, 623,351.92 and 270,423.12 is: 373,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,780.12 : 623,351.92 = 270,423.12 : x
  2. Step 2: Convert to fraction form
    451,780.12/623,351.92 = 270,423.12/x
  3. Step 3: Cross multiply
    451,780.12x = 623,351.92 × 270,423.12
  4. Step 4: Simplify right side
    451,780.12x = 168,568,771,064.39
  5. Step 5: Solve for x
    x = 168,568,771,064.39/451,780.12
  6. Step 6: Final answer
    x = 373,121.27

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1.5x scale

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.