Home / 698,704.80-1,047,865.20-193,145.76

Finding the Fourth Proportional to 698,704.80, 1,047,865.20 and 193,145.76

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Solution

The fourth proportional to 698,704.80, 1,047,865.20 and 193,145.76 is: 289,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,704.80 : 1,047,865.20 = 193,145.76 : x
  2. Step 2: Convert to fraction form
    698,704.80/1,047,865.20 = 193,145.76/x
  3. Step 3: Cross multiply
    698,704.80x = 1,047,865.20 × 193,145.76
  4. Step 4: Simplify right side
    698,704.80x = 202,390,720,431.55
  5. Step 5: Solve for x
    x = 202,390,720,431.55/698,704.80
  6. Step 6: Final answer
    x = 289,665.56

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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.