Home / 939,971.22-1,292,172.49-808,669.21

Finding the Fourth Proportional to 939,971.22, 1,292,172.49 and 808,669.21

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Solution

The fourth proportional to 939,971.22, 1,292,172.49 and 808,669.21 is: 1,111,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,971.22 : 1,292,172.49 = 808,669.21 : x
  2. Step 2: Convert to fraction form
    939,971.22/1,292,172.49 = 808,669.21/x
  3. Step 3: Cross multiply
    939,971.22x = 1,292,172.49 × 808,669.21
  4. Step 4: Simplify right side
    939,971.22x = 1,044,940,106,672.03
  5. Step 5: Solve for x
    x = 1,044,940,106,672.03/939,971.22
  6. Step 6: Final answer
    x = 1,111,672.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.