Home / 728,114.03-1,004,802.02-405,844.56

Finding the Fourth Proportional to 728,114.03, 1,004,802.02 and 405,844.56

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Solution

The fourth proportional to 728,114.03, 1,004,802.02 and 405,844.56 is: 560,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,114.03 : 1,004,802.02 = 405,844.56 : x
  2. Step 2: Convert to fraction form
    728,114.03/1,004,802.02 = 405,844.56/x
  3. Step 3: Cross multiply
    728,114.03x = 1,004,802.02 × 405,844.56
  4. Step 4: Simplify right side
    728,114.03x = 407,793,431,664.79
  5. Step 5: Solve for x
    x = 407,793,431,664.79/728,114.03
  6. Step 6: Final answer
    x = 560,068.09

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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.