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Finding the Fourth Proportional to 451,380.47, 622,924.13 and 257,820.03

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Solution

The fourth proportional to 451,380.47, 622,924.13 and 257,820.03 is: 355,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,380.47 : 622,924.13 = 257,820.03 : x
  2. Step 2: Convert to fraction form
    451,380.47/622,924.13 = 257,820.03/x
  3. Step 3: Cross multiply
    451,380.47x = 622,924.13 × 257,820.03
  4. Step 4: Simplify right side
    451,380.47x = 160,602,317,884.32
  5. Step 5: Solve for x
    x = 160,602,317,884.32/451,380.47
  6. Step 6: Final answer
    x = 355,802.54

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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.