Home / 1,112,877.20-1,669,315.80-939,666.80

Finding the Fourth Proportional to 1,112,877.20, 1,669,315.80 and 939,666.80

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Solution

The fourth proportional to 1,112,877.20, 1,669,315.80 and 939,666.80 is: 1,409,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,877.20 : 1,669,315.80 = 939,666.80 : x
  2. Step 2: Convert to fraction form
    1,112,877.20/1,669,315.80 = 939,666.80/x
  3. Step 3: Cross multiply
    1,112,877.20x = 1,669,315.80 × 939,666.80
  4. Step 4: Simplify right side
    1,112,877.20x = 1,568,600,635,975.44
  5. Step 5: Solve for x
    x = 1,568,600,635,975.44/1,112,877.20
  6. Step 6: Final answer
    x = 1,409,500.20

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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.