Home / 548,485.12-756,907.32-306,766.72

Finding the Fourth Proportional to 548,485.12, 756,907.32 and 306,766.72

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Solution

The fourth proportional to 548,485.12, 756,907.32 and 306,766.72 is: 423,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,485.12 : 756,907.32 = 306,766.72 : x
  2. Step 2: Convert to fraction form
    548,485.12/756,907.32 = 306,766.72/x
  3. Step 3: Cross multiply
    548,485.12x = 756,907.32 × 306,766.72
  4. Step 4: Simplify right side
    548,485.12x = 232,193,975,900.39
  5. Step 5: Solve for x
    x = 232,193,975,900.39/548,485.12
  6. Step 6: Final answer
    x = 423,336.87

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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.