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Finding the Fourth Proportional to 548,156.88, 756,462.11 and 306,452.88

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Solution

The fourth proportional to 548,156.88, 756,462.11 and 306,452.88 is: 422,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,156.88 : 756,462.11 = 306,452.88 : x
  2. Step 2: Convert to fraction form
    548,156.88/756,462.11 = 306,452.88/x
  3. Step 3: Cross multiply
    548,156.88x = 756,462.11 × 306,452.88
  4. Step 4: Simplify right side
    548,156.88x = 231,819,990,688.11
  5. Step 5: Solve for x
    x = 231,819,990,688.11/548,156.88
  6. Step 6: Final answer
    x = 422,908.11

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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.