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Finding the Fourth Proportional to 568,080, 783,975.42 and 326,438.37

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Solution

The fourth proportional to 568,080, 783,975.42 and 326,438.37 is: 450,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,080 : 783,975.42 = 326,438.37 : x
  2. Step 2: Convert to fraction form
    568,080/783,975.42 = 326,438.37/x
  3. Step 3: Cross multiply
    568,080x = 783,975.42 × 326,438.37
  4. Step 4: Simplify right side
    568,080x = 255,919,658,224.87
  5. Step 5: Solve for x
    x = 255,919,658,224.87/568,080
  6. Step 6: Final answer
    x = 450,499.33

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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.