Home / 1,412,608.07-2,118,865.20-613,890.38

Finding the Fourth Proportional to 1,412,608.07, 2,118,865.20 and 613,890.38

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Solution

The fourth proportional to 1,412,608.07, 2,118,865.20 and 613,890.38 is: 920,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,608.07 : 2,118,865.20 = 613,890.38 : x
  2. Step 2: Convert to fraction form
    1,412,608.07/2,118,865.20 = 613,890.38/x
  3. Step 3: Cross multiply
    1,412,608.07x = 2,118,865.20 × 613,890.38
  4. Step 4: Simplify right side
    1,412,608.07x = 1,300,750,952,202.45
  5. Step 5: Solve for x
    x = 1,300,750,952,202.45/1,412,608.07
  6. Step 6: Final answer
    x = 920,815.18

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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.