Home / 1,090,975.78-1,504,771.05-728,216.74

Finding the Fourth Proportional to 1,090,975.78, 1,504,771.05 and 728,216.74

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Solution

The fourth proportional to 1,090,975.78, 1,504,771.05 and 728,216.74 is: 1,004,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,975.78 : 1,504,771.05 = 728,216.74 : x
  2. Step 2: Convert to fraction form
    1,090,975.78/1,504,771.05 = 728,216.74/x
  3. Step 3: Cross multiply
    1,090,975.78x = 1,504,771.05 × 728,216.74
  4. Step 4: Simplify right side
    1,090,975.78x = 1,095,799,468,477.38
  5. Step 5: Solve for x
    x = 1,095,799,468,477.38/1,090,975.78
  6. Step 6: Final answer
    x = 1,004,421.44

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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.