Home / 1,139,167.24-1,571,988-629,836

Finding the Fourth Proportional to 1,139,167.24, 1,571,988 and 629,836

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Solution

The fourth proportional to 1,139,167.24, 1,571,988 and 629,836 is: 869,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,167.24 : 1,571,988 = 629,836 : x
  2. Step 2: Convert to fraction form
    1,139,167.24/1,571,988 = 629,836/x
  3. Step 3: Cross multiply
    1,139,167.24x = 1,571,988 × 629,836
  4. Step 4: Simplify right side
    1,139,167.24x = 990,094,633,968
  5. Step 5: Solve for x
    x = 990,094,633,968/1,139,167.24
  6. Step 6: Final answer
    x = 869,138.96

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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.