Home / 1,412,609.07-2,118,866.70-613,891.38

Finding the Fourth Proportional to 1,412,609.07, 2,118,866.70 and 613,891.38

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Solution

The fourth proportional to 1,412,609.07, 2,118,866.70 and 613,891.38 is: 920,816.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,609.07 : 2,118,866.70 = 613,891.38 : x
  2. Step 2: Convert to fraction form
    1,412,609.07/2,118,866.70 = 613,891.38/x
  3. Step 3: Cross multiply
    1,412,609.07x = 2,118,866.70 × 613,891.38
  4. Step 4: Simplify right side
    1,412,609.07x = 1,300,754,002,499.05
  5. Step 5: Solve for x
    x = 1,300,754,002,499.05/1,412,609.07
  6. Step 6: Final answer
    x = 920,816.69

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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.