Home / 1,405,988.67-1,940,261.41-761,406.87

Finding the Fourth Proportional to 1,405,988.67, 1,940,261.41 and 761,406.87

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Solution

The fourth proportional to 1,405,988.67, 1,940,261.41 and 761,406.87 is: 1,050,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,988.67 : 1,940,261.41 = 761,406.87 : x
  2. Step 2: Convert to fraction form
    1,405,988.67/1,940,261.41 = 761,406.87/x
  3. Step 3: Cross multiply
    1,405,988.67x = 1,940,261.41 × 761,406.87
  4. Step 4: Simplify right side
    1,405,988.67x = 1,477,328,367,169.89
  5. Step 5: Solve for x
    x = 1,477,328,367,169.89/1,405,988.67
  6. Step 6: Final answer
    x = 1,050,739.88

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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.