Home / 904,786.44-1,355,112.09-431,804.04

Finding the Fourth Proportional to 904,786.44, 1,355,112.09 and 431,804.04

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Solution

The fourth proportional to 904,786.44, 1,355,112.09 and 431,804.04 is: 646,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,786.44 : 1,355,112.09 = 431,804.04 : x
  2. Step 2: Convert to fraction form
    904,786.44/1,355,112.09 = 431,804.04/x
  3. Step 3: Cross multiply
    904,786.44x = 1,355,112.09 × 431,804.04
  4. Step 4: Simplify right side
    904,786.44x = 585,142,875,114.84
  5. Step 5: Solve for x
    x = 585,142,875,114.84/904,786.44
  6. Step 6: Final answer
    x = 646,719.32

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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.