Home / 1,939,860.32-2,677,090.32-1,080,420.80

Finding the Fourth Proportional to 1,939,860.32, 2,677,090.32 and 1,080,420.80

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Solution

The fourth proportional to 1,939,860.32, 2,677,090.32 and 1,080,420.80 is: 1,491,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,860.32 : 2,677,090.32 = 1,080,420.80 : x
  2. Step 2: Convert to fraction form
    1,939,860.32/2,677,090.32 = 1,080,420.80/x
  3. Step 3: Cross multiply
    1,939,860.32x = 2,677,090.32 × 1,080,420.80
  4. Step 4: Simplify right side
    1,939,860.32x = 2,892,384,065,206.66
  5. Step 5: Solve for x
    x = 2,892,384,065,206.66/1,939,860.32
  6. Step 6: Final answer
    x = 1,491,026.98

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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.