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Finding the Fourth Proportional to 615,076.88, 848,864.52 and 385,670.48

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Solution

The fourth proportional to 615,076.88, 848,864.52 and 385,670.48 is: 532,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,076.88 : 848,864.52 = 385,670.48 : x
  2. Step 2: Convert to fraction form
    615,076.88/848,864.52 = 385,670.48/x
  3. Step 3: Cross multiply
    615,076.88x = 848,864.52 × 385,670.48
  4. Step 4: Simplify right side
    615,076.88x = 327,381,986,883.37
  5. Step 5: Solve for x
    x = 327,381,986,883.37/615,076.88
  6. Step 6: Final answer
    x = 532,261.90

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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.