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Finding the Fourth Proportional to 395,682.84, 546,291.54 and 274,785.48

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Solution

The fourth proportional to 395,682.84, 546,291.54 and 274,785.48 is: 379,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,682.84 : 546,291.54 = 274,785.48 : x
  2. Step 2: Convert to fraction form
    395,682.84/546,291.54 = 274,785.48/x
  3. Step 3: Cross multiply
    395,682.84x = 546,291.54 × 274,785.48
  4. Step 4: Simplify right side
    395,682.84x = 150,112,983,038.84
  5. Step 5: Solve for x
    x = 150,112,983,038.84/395,682.84
  6. Step 6: Final answer
    x = 379,377.04

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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.