Home / 1,388,909.37-1,916,994.72-845,220.33

Finding the Fourth Proportional to 1,388,909.37, 1,916,994.72 and 845,220.33

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Solution

The fourth proportional to 1,388,909.37, 1,916,994.72 and 845,220.33 is: 1,166,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,909.37 : 1,916,994.72 = 845,220.33 : x
  2. Step 2: Convert to fraction form
    1,388,909.37/1,916,994.72 = 845,220.33/x
  3. Step 3: Cross multiply
    1,388,909.37x = 1,916,994.72 × 845,220.33
  4. Step 4: Simplify right side
    1,388,909.37x = 1,620,282,902,657.93
  5. Step 5: Solve for x
    x = 1,620,282,902,657.93/1,388,909.37
  6. Step 6: Final answer
    x = 1,166,586.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.