Home / 1,377,446.80-2,066,170.20-668,858.80

Finding the Fourth Proportional to 1,377,446.80, 2,066,170.20 and 668,858.80

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Solution

The fourth proportional to 1,377,446.80, 2,066,170.20 and 668,858.80 is: 1,003,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,446.80 : 2,066,170.20 = 668,858.80 : x
  2. Step 2: Convert to fraction form
    1,377,446.80/2,066,170.20 = 668,858.80/x
  3. Step 3: Cross multiply
    1,377,446.80x = 2,066,170.20 × 668,858.80
  4. Step 4: Simplify right side
    1,377,446.80x = 1,381,976,120,567.76
  5. Step 5: Solve for x
    x = 1,381,976,120,567.76/1,377,446.80
  6. Step 6: Final answer
    x = 1,003,288.20

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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.