Home / 1,113,161.28-1,536,162.90-629,716.20

Finding the Fourth Proportional to 1,113,161.28, 1,536,162.90 and 629,716.20

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Solution

The fourth proportional to 1,113,161.28, 1,536,162.90 and 629,716.20 is: 869,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,161.28 : 1,536,162.90 = 629,716.20 : x
  2. Step 2: Convert to fraction form
    1,113,161.28/1,536,162.90 = 629,716.20/x
  3. Step 3: Cross multiply
    1,113,161.28x = 1,536,162.90 × 629,716.20
  4. Step 4: Simplify right side
    1,113,161.28x = 967,346,663,968.98
  5. Step 5: Solve for x
    x = 967,346,663,968.98/1,113,161.28
  6. Step 6: Final answer
    x = 869,008.54

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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.