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Finding the Fourth Proportional to 448,074.14, 618,570.86 and 303,642.96

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Solution

The fourth proportional to 448,074.14, 618,570.86 and 303,642.96 is: 419,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,074.14 : 618,570.86 = 303,642.96 : x
  2. Step 2: Convert to fraction form
    448,074.14/618,570.86 = 303,642.96/x
  3. Step 3: Cross multiply
    448,074.14x = 618,570.86 × 303,642.96
  4. Step 4: Simplify right side
    448,074.14x = 187,824,685,381.93
  5. Step 5: Solve for x
    x = 187,824,685,381.93/448,074.14
  6. Step 6: Final answer
    x = 419,182.16

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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.