Home / 1,405,794.55-1,939,999.11-785,599.71

Finding the Fourth Proportional to 1,405,794.55, 1,939,999.11 and 785,599.71

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Solution

The fourth proportional to 1,405,794.55, 1,939,999.11 and 785,599.71 is: 1,084,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,794.55 : 1,939,999.11 = 785,599.71 : x
  2. Step 2: Convert to fraction form
    1,405,794.55/1,939,999.11 = 785,599.71/x
  3. Step 3: Cross multiply
    1,405,794.55x = 1,939,999.11 × 785,599.71
  4. Step 4: Simplify right side
    1,405,794.55x = 1,524,062,738,216.26
  5. Step 5: Solve for x
    x = 1,524,062,738,216.26/1,405,794.55
  6. Step 6: Final answer
    x = 1,084,129.07

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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.