Home / 1,415,978.30-1,954,040.36-771,399.02

Finding the Fourth Proportional to 1,415,978.30, 1,954,040.36 and 771,399.02

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Solution

The fourth proportional to 1,415,978.30, 1,954,040.36 and 771,399.02 is: 1,064,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,978.30 : 1,954,040.36 = 771,399.02 : x
  2. Step 2: Convert to fraction form
    1,415,978.30/1,954,040.36 = 771,399.02/x
  3. Step 3: Cross multiply
    1,415,978.30x = 1,954,040.36 × 771,399.02
  4. Step 4: Simplify right side
    1,415,978.30x = 1,507,344,818,744.45
  5. Step 5: Solve for x
    x = 1,507,344,818,744.45/1,415,978.30
  6. Step 6: Final answer
    x = 1,064,525.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.