Home / 1,373,709.80-2,059,604.70-812,455.40

Finding the Fourth Proportional to 1,373,709.80, 2,059,604.70 and 812,455.40

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Solution

The fourth proportional to 1,373,709.80, 2,059,604.70 and 812,455.40 is: 1,218,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,709.80 : 2,059,604.70 = 812,455.40 : x
  2. Step 2: Convert to fraction form
    1,373,709.80/2,059,604.70 = 812,455.40/x
  3. Step 3: Cross multiply
    1,373,709.80x = 2,059,604.70 × 812,455.40
  4. Step 4: Simplify right side
    1,373,709.80x = 1,673,336,960,380.38
  5. Step 5: Solve for x
    x = 1,673,336,960,380.38/1,373,709.80
  6. Step 6: Final answer
    x = 1,218,115.33

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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.