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Finding the Fourth Proportional to 550,394.52, 759,760.74 and 369,040.38

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Solution

The fourth proportional to 550,394.52, 759,760.74 and 369,040.38 is: 509,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,394.52 : 759,760.74 = 369,040.38 : x
  2. Step 2: Convert to fraction form
    550,394.52/759,760.74 = 369,040.38/x
  3. Step 3: Cross multiply
    550,394.52x = 759,760.74 × 369,040.38
  4. Step 4: Simplify right side
    550,394.52x = 280,382,392,198.68
  5. Step 5: Solve for x
    x = 280,382,392,198.68/550,394.52
  6. Step 6: Final answer
    x = 509,420.76

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1.5x scale

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.