Home / 1,515,055.89-2,272,586.41-1,213,368.81

Finding the Fourth Proportional to 1,515,055.89, 2,272,586.41 and 1,213,368.81

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Solution

The fourth proportional to 1,515,055.89, 2,272,586.41 and 1,213,368.81 is: 1,820,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,055.89 : 2,272,586.41 = 1,213,368.81 : x
  2. Step 2: Convert to fraction form
    1,515,055.89/2,272,586.41 = 1,213,368.81/x
  3. Step 3: Cross multiply
    1,515,055.89x = 2,272,586.41 × 1,213,368.81
  4. Step 4: Simplify right side
    1,515,055.89x = 2,757,485,467,923.87
  5. Step 5: Solve for x
    x = 2,757,485,467,923.87/1,515,055.89
  6. Step 6: Final answer
    x = 1,820,055.28

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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.