Home / 1,405,987.67-1,940,260.03-761,405.87

Finding the Fourth Proportional to 1,405,987.67, 1,940,260.03 and 761,405.87

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Solution

The fourth proportional to 1,405,987.67, 1,940,260.03 and 761,405.87 is: 1,050,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,987.67 : 1,940,260.03 = 761,405.87 : x
  2. Step 2: Convert to fraction form
    1,405,987.67/1,940,260.03 = 761,405.87/x
  3. Step 3: Cross multiply
    1,405,987.67x = 1,940,260.03 × 761,405.87
  4. Step 4: Simplify right side
    1,405,987.67x = 1,477,325,379,115.51
  5. Step 5: Solve for x
    x = 1,477,325,379,115.51/1,405,987.67
  6. Step 6: Final answer
    x = 1,050,738.50

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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.