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Finding the Fourth Proportional to 548,485.62, 756,908.01 and 306,767.22

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Solution

The fourth proportional to 548,485.62, 756,908.01 and 306,767.22 is: 423,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,485.62 : 756,908.01 = 306,767.22 : x
  2. Step 2: Convert to fraction form
    548,485.62/756,908.01 = 306,767.22/x
  3. Step 3: Cross multiply
    548,485.62x = 756,908.01 × 306,767.22
  4. Step 4: Simplify right side
    548,485.62x = 232,194,566,023.43
  5. Step 5: Solve for x
    x = 232,194,566,023.43/548,485.62
  6. Step 6: Final answer
    x = 423,337.56

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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.