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Finding the Fourth Proportional to 548,414.55, 756,806.76 and 306,694.35

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Solution

The fourth proportional to 548,414.55, 756,806.76 and 306,694.35 is: 423,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,414.55 : 756,806.76 = 306,694.35 : x
  2. Step 2: Convert to fraction form
    548,414.55/756,806.76 = 306,694.35/x
  3. Step 3: Cross multiply
    548,414.55x = 756,806.76 × 306,694.35
  4. Step 4: Simplify right side
    548,414.55x = 232,108,357,333.81
  5. Step 5: Solve for x
    x = 232,108,357,333.81/548,414.55
  6. Step 6: Final answer
    x = 423,235.23

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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.