Home / 1,012,138.12-1,395,846.06-839,783.32

Finding the Fourth Proportional to 1,012,138.12, 1,395,846.06 and 839,783.32

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Solution

The fourth proportional to 1,012,138.12, 1,395,846.06 and 839,783.32 is: 1,158,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,138.12 : 1,395,846.06 = 839,783.32 : x
  2. Step 2: Convert to fraction form
    1,012,138.12/1,395,846.06 = 839,783.32/x
  3. Step 3: Cross multiply
    1,012,138.12x = 1,395,846.06 × 839,783.32
  4. Step 4: Simplify right side
    1,012,138.12x = 1,172,208,238,475.72
  5. Step 5: Solve for x
    x = 1,172,208,238,475.72/1,012,138.12
  6. Step 6: Final answer
    x = 1,158,150.47

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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.