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Finding the Fourth Proportional to 484,629.56, 668,851.48 and 277,978.58

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Solution

The fourth proportional to 484,629.56, 668,851.48 and 277,978.58 is: 383,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,629.56 : 668,851.48 = 277,978.58 : x
  2. Step 2: Convert to fraction form
    484,629.56/668,851.48 = 277,978.58/x
  3. Step 3: Cross multiply
    484,629.56x = 668,851.48 × 277,978.58
  4. Step 4: Simplify right side
    484,629.56x = 185,926,384,641.30
  5. Step 5: Solve for x
    x = 185,926,384,641.30/484,629.56
  6. Step 6: Final answer
    x = 383,646.40

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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.