Home / 912,942.46-1,370,001.21-492,508.54

Finding the Fourth Proportional to 912,942.46, 1,370,001.21 and 492,508.54

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Solution

The fourth proportional to 912,942.46, 1,370,001.21 and 492,508.54 is: 739,079.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,942.46 : 1,370,001.21 = 492,508.54 : x
  2. Step 2: Convert to fraction form
    912,942.46/1,370,001.21 = 492,508.54/x
  3. Step 3: Cross multiply
    912,942.46x = 1,370,001.21 × 492,508.54
  4. Step 4: Simplify right side
    912,942.46x = 674,737,295,735.33
  5. Step 5: Solve for x
    x = 674,737,295,735.33/912,942.46
  6. Step 6: Final answer
    x = 739,079.76

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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.