Home / 842,745.45-1,162,703.81-479,912.03

Finding the Fourth Proportional to 842,745.45, 1,162,703.81 and 479,912.03

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Solution

The fourth proportional to 842,745.45, 1,162,703.81 and 479,912.03 is: 662,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,745.45 : 1,162,703.81 = 479,912.03 : x
  2. Step 2: Convert to fraction form
    842,745.45/1,162,703.81 = 479,912.03/x
  3. Step 3: Cross multiply
    842,745.45x = 1,162,703.81 × 479,912.03
  4. Step 4: Simplify right side
    842,745.45x = 557,995,537,532.76
  5. Step 5: Solve for x
    x = 557,995,537,532.76/842,745.45
  6. Step 6: Final answer
    x = 662,116.35

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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.