Home / 874,268.80-1,311,014.40-401,099.20

Finding the Fourth Proportional to 874,268.80, 1,311,014.40 and 401,099.20

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Solution

The fourth proportional to 874,268.80, 1,311,014.40 and 401,099.20 is: 601,470.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,268.80 : 1,311,014.40 = 401,099.20 : x
  2. Step 2: Convert to fraction form
    874,268.80/1,311,014.40 = 401,099.20/x
  3. Step 3: Cross multiply
    874,268.80x = 1,311,014.40 × 401,099.20
  4. Step 4: Simplify right side
    874,268.80x = 525,846,827,028.48
  5. Step 5: Solve for x
    x = 525,846,827,028.48/874,268.80
  6. Step 6: Final answer
    x = 601,470.43

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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.