Home / 1,138,926.20-1,571,750.96-629,661.38

Finding the Fourth Proportional to 1,138,926.20, 1,571,750.96 and 629,661.38

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Solution

The fourth proportional to 1,138,926.20, 1,571,750.96 and 629,661.38 is: 868,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,926.20 : 1,571,750.96 = 629,661.38 : x
  2. Step 2: Convert to fraction form
    1,138,926.20/1,571,750.96 = 629,661.38/x
  3. Step 3: Cross multiply
    1,138,926.20x = 1,571,750.96 × 629,661.38
  4. Step 4: Simplify right side
    1,138,926.20x = 989,670,878,489.93
  5. Step 5: Solve for x
    x = 989,670,878,489.93/1,138,926.20
  6. Step 6: Final answer
    x = 868,950.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.