Home / 1,089,775.80-1,504,098.81-721,603.56

Finding the Fourth Proportional to 1,089,775.80, 1,504,098.81 and 721,603.56

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Solution

The fourth proportional to 1,089,775.80, 1,504,098.81 and 721,603.56 is: 995,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,775.80 : 1,504,098.81 = 721,603.56 : x
  2. Step 2: Convert to fraction form
    1,089,775.80/1,504,098.81 = 721,603.56/x
  3. Step 3: Cross multiply
    1,089,775.80x = 1,504,098.81 × 721,603.56
  4. Step 4: Simplify right side
    1,089,775.80x = 1,085,363,048,367.27
  5. Step 5: Solve for x
    x = 1,085,363,048,367.27/1,089,775.80
  6. Step 6: Final answer
    x = 995,950.77

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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.