Home / 1,415,942.55-1,953,993.06-771,361.20

Finding the Fourth Proportional to 1,415,942.55, 1,953,993.06 and 771,361.20

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Solution

The fourth proportional to 1,415,942.55, 1,953,993.06 and 771,361.20 is: 1,064,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,942.55 : 1,953,993.06 = 771,361.20 : x
  2. Step 2: Convert to fraction form
    1,415,942.55/1,953,993.06 = 771,361.20/x
  3. Step 3: Cross multiply
    1,415,942.55x = 1,953,993.06 × 771,361.20
  4. Step 4: Simplify right side
    1,415,942.55x = 1,507,234,431,553.27
  5. Step 5: Solve for x
    x = 1,507,234,431,553.27/1,415,942.55
  6. Step 6: Final answer
    x = 1,064,474.28

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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.