Home / 2,078,419.20-3,117,628.80-1,773,988.80

Finding the Fourth Proportional to 2,078,419.20, 3,117,628.80 and 1,773,988.80

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Solution

The fourth proportional to 2,078,419.20, 3,117,628.80 and 1,773,988.80 is: 2,660,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,419.20 : 3,117,628.80 = 1,773,988.80 : x
  2. Step 2: Convert to fraction form
    2,078,419.20/3,117,628.80 = 1,773,988.80/x
  3. Step 3: Cross multiply
    2,078,419.20x = 3,117,628.80 × 1,773,988.80
  4. Step 4: Simplify right side
    2,078,419.20x = 5,530,638,573,757.44
  5. Step 5: Solve for x
    x = 5,530,638,573,757.44/2,078,419.20
  6. Step 6: Final answer
    x = 2,660,983.20

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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.