Home / 1,271,762.30-1,907,643.45-1,100,520.20

Finding the Fourth Proportional to 1,271,762.30, 1,907,643.45 and 1,100,520.20

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Solution

The fourth proportional to 1,271,762.30, 1,907,643.45 and 1,100,520.20 is: 1,650,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,762.30 : 1,907,643.45 = 1,100,520.20 : x
  2. Step 2: Convert to fraction form
    1,271,762.30/1,907,643.45 = 1,100,520.20/x
  3. Step 3: Cross multiply
    1,271,762.30x = 1,907,643.45 × 1,100,520.20
  4. Step 4: Simplify right side
    1,271,762.30x = 2,099,400,151,122.69
  5. Step 5: Solve for x
    x = 2,099,400,151,122.69/1,271,762.30
  6. Step 6: Final answer
    x = 1,650,780.30

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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.