Home / 758,639.27-1,138,002.75-285,328.73

Finding the Fourth Proportional to 758,639.27, 1,138,002.75 and 285,328.73

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Solution

The fourth proportional to 758,639.27, 1,138,002.75 and 285,328.73 is: 428,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,639.27 : 1,138,002.75 = 285,328.73 : x
  2. Step 2: Convert to fraction form
    758,639.27/1,138,002.75 = 285,328.73/x
  3. Step 3: Cross multiply
    758,639.27x = 1,138,002.75 × 285,328.73
  4. Step 4: Simplify right side
    758,639.27x = 324,704,879,394.01
  5. Step 5: Solve for x
    x = 324,704,879,394.01/758,639.27
  6. Step 6: Final answer
    x = 428,009.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.