Home / 1,089,974.40-1,633,406.40-803,428.80

Finding the Fourth Proportional to 1,089,974.40, 1,633,406.40 and 803,428.80

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Solution

The fourth proportional to 1,089,974.40, 1,633,406.40 and 803,428.80 is: 1,203,996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,974.40 : 1,633,406.40 = 803,428.80 : x
  2. Step 2: Convert to fraction form
    1,089,974.40/1,633,406.40 = 803,428.80/x
  3. Step 3: Cross multiply
    1,089,974.40x = 1,633,406.40 × 803,428.80
  4. Step 4: Simplify right side
    1,089,974.40x = 1,312,325,743,864.32
  5. Step 5: Solve for x
    x = 1,312,325,743,864.32/1,089,974.40
  6. Step 6: Final answer
    x = 1,203,996.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.