Home / 1,089,677.51-1,503,128.76-681,070.22

Finding the Fourth Proportional to 1,089,677.51, 1,503,128.76 and 681,070.22

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Solution

The fourth proportional to 1,089,677.51, 1,503,128.76 and 681,070.22 is: 939,485.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,677.51 : 1,503,128.76 = 681,070.22 : x
  2. Step 2: Convert to fraction form
    1,089,677.51/1,503,128.76 = 681,070.22/x
  3. Step 3: Cross multiply
    1,089,677.51x = 1,503,128.76 × 681,070.22
  4. Step 4: Simplify right side
    1,089,677.51x = 1,023,736,227,745.88
  5. Step 5: Solve for x
    x = 1,023,736,227,745.88/1,089,677.51
  6. Step 6: Final answer
    x = 939,485.51

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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.