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Finding the Fourth Proportional to 534,653.82, 737,728.50 and 305,106.30

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Solution

The fourth proportional to 534,653.82, 737,728.50 and 305,106.30 is: 420,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,653.82 : 737,728.50 = 305,106.30 : x
  2. Step 2: Convert to fraction form
    534,653.82/737,728.50 = 305,106.30/x
  3. Step 3: Cross multiply
    534,653.82x = 737,728.50 × 305,106.30
  4. Step 4: Simplify right side
    534,653.82x = 225,085,613,039.55
  5. Step 5: Solve for x
    x = 225,085,613,039.55/534,653.82
  6. Step 6: Final answer
    x = 420,993.18

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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.