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Finding the Fourth Proportional to 548,481.75, 756,900.45 and 306,764.13

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Solution

The fourth proportional to 548,481.75, 756,900.45 and 306,764.13 is: 423,332.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,481.75 : 756,900.45 = 306,764.13 : x
  2. Step 2: Convert to fraction form
    548,481.75/756,900.45 = 306,764.13/x
  3. Step 3: Cross multiply
    548,481.75x = 756,900.45 × 306,764.13
  4. Step 4: Simplify right side
    548,481.75x = 232,189,908,040.86
  5. Step 5: Solve for x
    x = 232,189,908,040.86/548,481.75
  6. Step 6: Final answer
    x = 423,332.06

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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.