Home / 885,172.80-1,326,009.60-485,097.60

Finding the Fourth Proportional to 885,172.80, 1,326,009.60 and 485,097.60

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Solution

The fourth proportional to 885,172.80, 1,326,009.60 and 485,097.60 is: 726,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,172.80 : 1,326,009.60 = 485,097.60 : x
  2. Step 2: Convert to fraction form
    885,172.80/1,326,009.60 = 485,097.60/x
  3. Step 3: Cross multiply
    885,172.80x = 1,326,009.60 × 485,097.60
  4. Step 4: Simplify right side
    885,172.80x = 643,244,074,536.96
  5. Step 5: Solve for x
    x = 643,244,074,536.96/885,172.80
  6. Step 6: Final answer
    x = 726,687.57

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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.