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Finding the Fourth Proportional to 439,559.12, 606,489.72 and 303,712.40

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Solution

The fourth proportional to 439,559.12, 606,489.72 and 303,712.40 is: 419,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,559.12 : 606,489.72 = 303,712.40 : x
  2. Step 2: Convert to fraction form
    439,559.12/606,489.72 = 303,712.40/x
  3. Step 3: Cross multiply
    439,559.12x = 606,489.72 × 303,712.40
  4. Step 4: Simplify right side
    439,559.12x = 184,198,448,436.53
  5. Step 5: Solve for x
    x = 184,198,448,436.53/439,559.12
  6. Step 6: Final answer
    x = 419,052.73

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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.