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Finding the Fourth Proportional to 561,858.46, 775,575.52 and 368,278.64

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Solution

The fourth proportional to 561,858.46, 775,575.52 and 368,278.64 is: 508,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,858.46 : 775,575.52 = 368,278.64 : x
  2. Step 2: Convert to fraction form
    561,858.46/775,575.52 = 368,278.64/x
  3. Step 3: Cross multiply
    561,858.46x = 775,575.52 × 368,278.64
  4. Step 4: Simplify right side
    561,858.46x = 285,627,897,722.89
  5. Step 5: Solve for x
    x = 285,627,897,722.89/561,858.46
  6. Step 6: Final answer
    x = 508,362.72

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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.