Home / 1,399,639.36-1,932,432-1,076,779.84

Finding the Fourth Proportional to 1,399,639.36, 1,932,432 and 1,076,779.84

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Solution

The fourth proportional to 1,399,639.36, 1,932,432 and 1,076,779.84 is: 1,486,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,639.36 : 1,932,432 = 1,076,779.84 : x
  2. Step 2: Convert to fraction form
    1,399,639.36/1,932,432 = 1,076,779.84/x
  3. Step 3: Cross multiply
    1,399,639.36x = 1,932,432 × 1,076,779.84
  4. Step 4: Simplify right side
    1,399,639.36x = 2,080,803,819,770.88
  5. Step 5: Solve for x
    x = 2,080,803,819,770.88/1,399,639.36
  6. Step 6: Final answer
    x = 1,486,671.41

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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.