Home / 2,119,738.60-3,175,460.70-1,275,783.40

Finding the Fourth Proportional to 2,119,738.60, 3,175,460.70 and 1,275,783.40

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Solution

The fourth proportional to 2,119,738.60, 3,175,460.70 and 1,275,783.40 is: 1,911,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,738.60 : 3,175,460.70 = 1,275,783.40 : x
  2. Step 2: Convert to fraction form
    2,119,738.60/3,175,460.70 = 1,275,783.40/x
  3. Step 3: Cross multiply
    2,119,738.60x = 3,175,460.70 × 1,275,783.40
  4. Step 4: Simplify right side
    2,119,738.60x = 4,051,200,048,412.38
  5. Step 5: Solve for x
    x = 4,051,200,048,412.38/2,119,738.60
  6. Step 6: Final answer
    x = 1,911,179.07

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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.