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Finding the Fourth Proportional to 548,160.88, 756,467.64 and 306,456.88

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Solution

The fourth proportional to 548,160.88, 756,467.64 and 306,456.88 is: 422,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,160.88 : 756,467.64 = 306,456.88 : x
  2. Step 2: Convert to fraction form
    548,160.88/756,467.64 = 306,456.88/x
  3. Step 3: Cross multiply
    548,160.88x = 756,467.64 × 306,456.88
  4. Step 4: Simplify right side
    548,160.88x = 231,824,712,775.36
  5. Step 5: Solve for x
    x = 231,824,712,775.36/548,160.88
  6. Step 6: Final answer
    x = 422,913.64

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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.