Home / 3,405,143.78-4,698,870.94-1,954,637.90

Finding the Fourth Proportional to 3,405,143.78, 4,698,870.94 and 1,954,637.90

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Solution

The fourth proportional to 3,405,143.78, 4,698,870.94 and 1,954,637.90 is: 2,697,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405,143.78 : 4,698,870.94 = 1,954,637.90 : x
  2. Step 2: Convert to fraction form
    3,405,143.78/4,698,870.94 = 1,954,637.90/x
  3. Step 3: Cross multiply
    3,405,143.78x = 4,698,870.94 × 1,954,637.90
  4. Step 4: Simplify right side
    3,405,143.78x = 9,184,591,226,532.63
  5. Step 5: Solve for x
    x = 9,184,591,226,532.63/3,405,143.78
  6. Step 6: Final answer
    x = 2,697,269.72

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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.