Home / 287,473.46-393,840.06-276,699.24

Finding the Fourth Proportional to 287,473.46, 393,840.06 and 276,699.24

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Solution

The fourth proportional to 287,473.46, 393,840.06 and 276,699.24 is: 379,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,473.46 : 393,840.06 = 276,699.24 : x
  2. Step 2: Convert to fraction form
    287,473.46/393,840.06 = 276,699.24/x
  3. Step 3: Cross multiply
    287,473.46x = 393,840.06 × 276,699.24
  4. Step 4: Simplify right side
    287,473.46x = 108,975,245,283.55
  5. Step 5: Solve for x
    x = 108,975,245,283.55/287,473.46
  6. Step 6: Final answer
    x = 379,079.33

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.