Home / 1,921,793.40-2,881,377.90-911,399.40

Finding the Fourth Proportional to 1,921,793.40, 2,881,377.90 and 911,399.40

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Solution

The fourth proportional to 1,921,793.40, 2,881,377.90 and 911,399.40 is: 1,366,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,793.40 : 2,881,377.90 = 911,399.40 : x
  2. Step 2: Convert to fraction form
    1,921,793.40/2,881,377.90 = 911,399.40/x
  3. Step 3: Cross multiply
    1,921,793.40x = 2,881,377.90 × 911,399.40
  4. Step 4: Simplify right side
    1,921,793.40x = 2,626,086,089,233.26
  5. Step 5: Solve for x
    x = 2,626,086,089,233.26/1,921,793.40
  6. Step 6: Final answer
    x = 1,366,476.80

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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.