Home / 919,956.42-1,379,993.04-288,895.14

Finding the Fourth Proportional to 919,956.42, 1,379,993.04 and 288,895.14

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Solution

The fourth proportional to 919,956.42, 1,379,993.04 and 288,895.14 is: 433,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,956.42 : 1,379,993.04 = 288,895.14 : x
  2. Step 2: Convert to fraction form
    919,956.42/1,379,993.04 = 288,895.14/x
  3. Step 3: Cross multiply
    919,956.42x = 1,379,993.04 × 288,895.14
  4. Step 4: Simplify right side
    919,956.42x = 398,673,282,489.83
  5. Step 5: Solve for x
    x = 398,673,282,489.83/919,956.42
  6. Step 6: Final answer
    x = 433,361.05

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1.5x scale

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.