Home / 1,381,297.79-2,070,375.51-840,361.65

Finding the Fourth Proportional to 1,381,297.79, 2,070,375.51 and 840,361.65

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Solution

The fourth proportional to 1,381,297.79, 2,070,375.51 and 840,361.65 is: 1,259,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,297.79 : 2,070,375.51 = 840,361.65 : x
  2. Step 2: Convert to fraction form
    1,381,297.79/2,070,375.51 = 840,361.65/x
  3. Step 3: Cross multiply
    1,381,297.79x = 2,070,375.51 × 840,361.65
  4. Step 4: Simplify right side
    1,381,297.79x = 1,739,864,179,703.19
  5. Step 5: Solve for x
    x = 1,739,864,179,703.19/1,381,297.79
  6. Step 6: Final answer
    x = 1,259,586.60

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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.