Home / 1,011,997.90-1,395,653.04-839,642.98

Finding the Fourth Proportional to 1,011,997.90, 1,395,653.04 and 839,642.98

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Solution

The fourth proportional to 1,011,997.90, 1,395,653.04 and 839,642.98 is: 1,157,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,997.90 : 1,395,653.04 = 839,642.98 : x
  2. Step 2: Convert to fraction form
    1,011,997.90/1,395,653.04 = 839,642.98/x
  3. Step 3: Cross multiply
    1,011,997.90x = 1,395,653.04 × 839,642.98
  4. Step 4: Simplify right side
    1,011,997.90x = 1,171,850,277,551.66
  5. Step 5: Solve for x
    x = 1,171,850,277,551.66/1,011,997.90
  6. Step 6: Final answer
    x = 1,157,957.22

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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.