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Finding the Fourth Proportional to 547,851.08, 756,030.81 and 306,134.26

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Solution

The fourth proportional to 547,851.08, 756,030.81 and 306,134.26 is: 422,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,851.08 : 756,030.81 = 306,134.26 : x
  2. Step 2: Convert to fraction form
    547,851.08/756,030.81 = 306,134.26/x
  3. Step 3: Cross multiply
    547,851.08x = 756,030.81 × 306,134.26
  4. Step 4: Simplify right side
    547,851.08x = 231,446,932,556.55
  5. Step 5: Solve for x
    x = 231,446,932,556.55/547,851.08
  6. Step 6: Final answer
    x = 422,463.22

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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.