Home / 1,405,732.77-1,939,912.43-761,153.31

Finding the Fourth Proportional to 1,405,732.77, 1,939,912.43 and 761,153.31

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Solution

The fourth proportional to 1,405,732.77, 1,939,912.43 and 761,153.31 is: 1,050,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,732.77 : 1,939,912.43 = 761,153.31 : x
  2. Step 2: Convert to fraction form
    1,405,732.77/1,939,912.43 = 761,153.31/x
  3. Step 3: Cross multiply
    1,405,732.77x = 1,939,912.43 × 761,153.31
  4. Step 4: Simplify right side
    1,405,732.77x = 1,476,570,763,398.88
  5. Step 5: Solve for x
    x = 1,476,570,763,398.88/1,405,732.77
  6. Step 6: Final answer
    x = 1,050,392.22

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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.