Home / 1,997,870.20-2,756,529.30-1,138,412.14

Finding the Fourth Proportional to 1,997,870.20, 2,756,529.30 and 1,138,412.14

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Solution

The fourth proportional to 1,997,870.20, 2,756,529.30 and 1,138,412.14 is: 1,570,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,870.20 : 2,756,529.30 = 1,138,412.14 : x
  2. Step 2: Convert to fraction form
    1,997,870.20/2,756,529.30 = 1,138,412.14/x
  3. Step 3: Cross multiply
    1,997,870.20x = 2,756,529.30 × 1,138,412.14
  4. Step 4: Simplify right side
    1,997,870.20x = 3,138,066,419,385.70
  5. Step 5: Solve for x
    x = 3,138,066,419,385.70/1,997,870.20
  6. Step 6: Final answer
    x = 1,570,705.85

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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.