Home / 1,912,820.10-2,863,009.35-1,489,805.70

Finding the Fourth Proportional to 1,912,820.10, 2,863,009.35 and 1,489,805.70

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Solution

The fourth proportional to 1,912,820.10, 2,863,009.35 and 1,489,805.70 is: 2,229,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,820.10 : 2,863,009.35 = 1,489,805.70 : x
  2. Step 2: Convert to fraction form
    1,912,820.10/2,863,009.35 = 1,489,805.70/x
  3. Step 3: Cross multiply
    1,912,820.10x = 2,863,009.35 × 1,489,805.70
  4. Step 4: Simplify right side
    1,912,820.10x = 4,265,327,648,783.30
  5. Step 5: Solve for x
    x = 4,265,327,648,783.30/1,912,820.10
  6. Step 6: Final answer
    x = 2,229,863.46

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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.