Home / 1,080,014.40-1,618,984.80-839,995.20

Finding the Fourth Proportional to 1,080,014.40, 1,618,984.80 and 839,995.20

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Solution

The fourth proportional to 1,080,014.40, 1,618,984.80 and 839,995.20 is: 1,259,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,014.40 : 1,618,984.80 = 839,995.20 : x
  2. Step 2: Convert to fraction form
    1,080,014.40/1,618,984.80 = 839,995.20/x
  3. Step 3: Cross multiply
    1,080,014.40x = 1,618,984.80 × 839,995.20
  4. Step 4: Simplify right side
    1,080,014.40x = 1,359,939,460,872.96
  5. Step 5: Solve for x
    x = 1,359,939,460,872.96/1,080,014.40
  6. Step 6: Final answer
    x = 1,259,186.42

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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.