Home / 3,128,341.20-4,694,286.93-1,689,005.43

Finding the Fourth Proportional to 3,128,341.20, 4,694,286.93 and 1,689,005.43

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Solution

The fourth proportional to 3,128,341.20, 4,694,286.93 and 1,689,005.43 is: 2,534,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,341.20 : 4,694,286.93 = 1,689,005.43 : x
  2. Step 2: Convert to fraction form
    3,128,341.20/4,694,286.93 = 1,689,005.43/x
  3. Step 3: Cross multiply
    3,128,341.20x = 4,694,286.93 × 1,689,005.43
  4. Step 4: Simplify right side
    3,128,341.20x = 7,928,676,114,748.03
  5. Step 5: Solve for x
    x = 7,928,676,114,748.03/3,128,341.20
  6. Step 6: Final answer
    x = 2,534,466.55

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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.