Home / 1,405,015.88-1,938,921.80-760,436.03

Finding the Fourth Proportional to 1,405,015.88, 1,938,921.80 and 760,436.03

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Solution

The fourth proportional to 1,405,015.88, 1,938,921.80 and 760,436.03 is: 1,049,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,015.88 : 1,938,921.80 = 760,436.03 : x
  2. Step 2: Convert to fraction form
    1,405,015.88/1,938,921.80 = 760,436.03/x
  3. Step 3: Cross multiply
    1,405,015.88x = 1,938,921.80 × 760,436.03
  4. Step 4: Simplify right side
    1,405,015.88x = 1,474,425,997,117.58
  5. Step 5: Solve for x
    x = 1,474,425,997,117.58/1,405,015.88
  6. Step 6: Final answer
    x = 1,049,401.66

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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.