Home / 919,111.70-1,378,667.55-682,915.70

Finding the Fourth Proportional to 919,111.70, 1,378,667.55 and 682,915.70

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Solution

The fourth proportional to 919,111.70, 1,378,667.55 and 682,915.70 is: 1,024,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,111.70 : 1,378,667.55 = 682,915.70 : x
  2. Step 2: Convert to fraction form
    919,111.70/1,378,667.55 = 682,915.70/x
  3. Step 3: Cross multiply
    919,111.70x = 1,378,667.55 × 682,915.70
  4. Step 4: Simplify right side
    919,111.70x = 941,513,714,975.54
  5. Step 5: Solve for x
    x = 941,513,714,975.54/919,111.70
  6. Step 6: Final answer
    x = 1,024,373.55

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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.