Home / 1,142,361.30-1,576,632.29-729,076.40

Finding the Fourth Proportional to 1,142,361.30, 1,576,632.29 and 729,076.40

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Solution

The fourth proportional to 1,142,361.30, 1,576,632.29 and 729,076.40 is: 1,006,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,361.30 : 1,576,632.29 = 729,076.40 : x
  2. Step 2: Convert to fraction form
    1,142,361.30/1,576,632.29 = 729,076.40/x
  3. Step 3: Cross multiply
    1,142,361.30x = 1,576,632.29 × 729,076.40
  4. Step 4: Simplify right side
    1,142,361.30x = 1,149,485,382,588.41
  5. Step 5: Solve for x
    x = 1,149,485,382,588.41/1,142,361.30
  6. Step 6: Final answer
    x = 1,006,236.28

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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.