Home / 1,440,181.27-1,987,510.53-828,334.18

Finding the Fourth Proportional to 1,440,181.27, 1,987,510.53 and 828,334.18

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Solution

The fourth proportional to 1,440,181.27, 1,987,510.53 and 828,334.18 is: 1,143,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,181.27 : 1,987,510.53 = 828,334.18 : x
  2. Step 2: Convert to fraction form
    1,440,181.27/1,987,510.53 = 828,334.18/x
  3. Step 3: Cross multiply
    1,440,181.27x = 1,987,510.53 × 828,334.18
  4. Step 4: Simplify right side
    1,440,181.27x = 1,646,322,905,108.92
  5. Step 5: Solve for x
    x = 1,646,322,905,108.92/1,440,181.27
  6. Step 6: Final answer
    x = 1,143,135.90

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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.