Home / 2,158,361.28-2,979,731.52-1,299,132

Finding the Fourth Proportional to 2,158,361.28, 2,979,731.52 and 1,299,132

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Solution

The fourth proportional to 2,158,361.28, 2,979,731.52 and 1,299,132 is: 1,793,520.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,361.28 : 2,979,731.52 = 1,299,132 : x
  2. Step 2: Convert to fraction form
    2,158,361.28/2,979,731.52 = 1,299,132/x
  3. Step 3: Cross multiply
    2,158,361.28x = 2,979,731.52 × 1,299,132
  4. Step 4: Simplify right side
    2,158,361.28x = 3,871,064,569,040.64
  5. Step 5: Solve for x
    x = 3,871,064,569,040.64/2,158,361.28
  6. Step 6: Final answer
    x = 1,793,520.21

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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.