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Finding the Fourth Proportional to 448,900.26, 619,482.06 and 287,755.26

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Solution

The fourth proportional to 448,900.26, 619,482.06 and 287,755.26 is: 397,102.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,900.26 : 619,482.06 = 287,755.26 : x
  2. Step 2: Convert to fraction form
    448,900.26/619,482.06 = 287,755.26/x
  3. Step 3: Cross multiply
    448,900.26x = 619,482.06 × 287,755.26
  4. Step 4: Simplify right side
    448,900.26x = 178,259,221,240.64
  5. Step 5: Solve for x
    x = 178,259,221,240.64/448,900.26
  6. Step 6: Final answer
    x = 397,102.07

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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.