Home / 1,389,926.74-2,086,238.30-670,774.54

Finding the Fourth Proportional to 1,389,926.74, 2,086,238.30 and 670,774.54

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Solution

The fourth proportional to 1,389,926.74, 2,086,238.30 and 670,774.54 is: 1,006,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,926.74 : 2,086,238.30 = 670,774.54 : x
  2. Step 2: Convert to fraction form
    1,389,926.74/2,086,238.30 = 670,774.54/x
  3. Step 3: Cross multiply
    1,389,926.74x = 2,086,238.30 × 670,774.54
  4. Step 4: Simplify right side
    1,389,926.74x = 1,399,395,542,882.32
  5. Step 5: Solve for x
    x = 1,399,395,542,882.32/1,389,926.74
  6. Step 6: Final answer
    x = 1,006,812.45

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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.