Home / 1,321,664.09-1,823,968.53-748,815.89

Finding the Fourth Proportional to 1,321,664.09, 1,823,968.53 and 748,815.89

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Solution

The fourth proportional to 1,321,664.09, 1,823,968.53 and 748,815.89 is: 1,033,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,664.09 : 1,823,968.53 = 748,815.89 : x
  2. Step 2: Convert to fraction form
    1,321,664.09/1,823,968.53 = 748,815.89/x
  3. Step 3: Cross multiply
    1,321,664.09x = 1,823,968.53 × 748,815.89
  4. Step 4: Simplify right side
    1,321,664.09x = 1,365,816,609,004.10
  5. Step 5: Solve for x
    x = 1,365,816,609,004.10/1,321,664.09
  6. Step 6: Final answer
    x = 1,033,406.77

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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.