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Finding the Fourth Proportional to 548,271.36, 756,579.42 and 306,573.84

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Solution

The fourth proportional to 548,271.36, 756,579.42 and 306,573.84 is: 423,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,271.36 : 756,579.42 = 306,573.84 : x
  2. Step 2: Convert to fraction form
    548,271.36/756,579.42 = 306,573.84/x
  3. Step 3: Cross multiply
    548,271.36x = 756,579.42 × 306,573.84
  4. Step 4: Simplify right side
    548,271.36x = 231,947,458,054.37
  5. Step 5: Solve for x
    x = 231,947,458,054.37/548,271.36
  6. Step 6: Final answer
    x = 423,052.30

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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.