Home / 1,089,677.75-1,503,129.11-681,070.46

Finding the Fourth Proportional to 1,089,677.75, 1,503,129.11 and 681,070.46

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Solution

The fourth proportional to 1,089,677.75, 1,503,129.11 and 681,070.46 is: 939,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,677.75 : 1,503,129.11 = 681,070.46 : x
  2. Step 2: Convert to fraction form
    1,089,677.75/1,503,129.11 = 681,070.46/x
  3. Step 3: Cross multiply
    1,089,677.75x = 1,503,129.11 × 681,070.46
  4. Step 4: Simplify right side
    1,089,677.75x = 1,023,736,828,970.65
  5. Step 5: Solve for x
    x = 1,023,736,828,970.65/1,089,677.75
  6. Step 6: Final answer
    x = 939,485.85

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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.