Home / 874,260.80-1,311,002.40-401,091.20

Finding the Fourth Proportional to 874,260.80, 1,311,002.40 and 401,091.20

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Solution

The fourth proportional to 874,260.80, 1,311,002.40 and 401,091.20 is: 601,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,260.80 : 1,311,002.40 = 401,091.20 : x
  2. Step 2: Convert to fraction form
    874,260.80/1,311,002.40 = 401,091.20/x
  3. Step 3: Cross multiply
    874,260.80x = 1,311,002.40 × 401,091.20
  4. Step 4: Simplify right side
    874,260.80x = 525,831,525,818.88
  5. Step 5: Solve for x
    x = 525,831,525,818.88/874,260.80
  6. Step 6: Final answer
    x = 601,458.43

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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.