Home / 1,971,202.80-2,955,940.20-905,890.80

Finding the Fourth Proportional to 1,971,202.80, 2,955,940.20 and 905,890.80

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Solution

The fourth proportional to 1,971,202.80, 2,955,940.20 and 905,890.80 is: 1,358,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,202.80 : 2,955,940.20 = 905,890.80 : x
  2. Step 2: Convert to fraction form
    1,971,202.80/2,955,940.20 = 905,890.80/x
  3. Step 3: Cross multiply
    1,971,202.80x = 2,955,940.20 × 905,890.80
  4. Step 4: Simplify right side
    1,971,202.80x = 2,677,759,032,530.16
  5. Step 5: Solve for x
    x = 2,677,759,032,530.16/1,971,202.80
  6. Step 6: Final answer
    x = 1,358,439.14

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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.