Home / 805,442.81-1,208,635.32-300,352.73

Finding the Fourth Proportional to 805,442.81, 1,208,635.32 and 300,352.73

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Solution

The fourth proportional to 805,442.81, 1,208,635.32 and 300,352.73 is: 450,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,442.81 : 1,208,635.32 = 300,352.73 : x
  2. Step 2: Convert to fraction form
    805,442.81/1,208,635.32 = 300,352.73/x
  3. Step 3: Cross multiply
    805,442.81x = 1,208,635.32 × 300,352.73
  4. Step 4: Simplify right side
    805,442.81x = 363,016,913,019.57
  5. Step 5: Solve for x
    x = 363,016,913,019.57/805,442.81
  6. Step 6: Final answer
    x = 450,704.77

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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.