Home / 491,638.40-678,462.08-273,845.32

Finding the Fourth Proportional to 491,638.40, 678,462.08 and 273,845.32

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Solution

The fourth proportional to 491,638.40, 678,462.08 and 273,845.32 is: 377,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,638.40 : 678,462.08 = 273,845.32 : x
  2. Step 2: Convert to fraction form
    491,638.40/678,462.08 = 273,845.32/x
  3. Step 3: Cross multiply
    491,638.40x = 678,462.08 × 273,845.32
  4. Step 4: Simplify right side
    491,638.40x = 185,793,665,405.47
  5. Step 5: Solve for x
    x = 185,793,665,405.47/491,638.40
  6. Step 6: Final answer
    x = 377,907.15

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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.