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Finding the Fourth Proportional to 548,166.79, 756,475.55 and 306,462.59

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Solution

The fourth proportional to 548,166.79, 756,475.55 and 306,462.59 is: 422,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,166.79 : 756,475.55 = 306,462.59 : x
  2. Step 2: Convert to fraction form
    548,166.79/756,475.55 = 306,462.59/x
  3. Step 3: Cross multiply
    548,166.79x = 756,475.55 × 306,462.59
  4. Step 4: Simplify right side
    548,166.79x = 231,831,456,719.85
  5. Step 5: Solve for x
    x = 231,831,456,719.85/548,166.79
  6. Step 6: Final answer
    x = 422,921.38

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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.