Home / 1,011,996.90-1,395,651.66-839,641.98

Finding the Fourth Proportional to 1,011,996.90, 1,395,651.66 and 839,641.98

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Solution

The fourth proportional to 1,011,996.90, 1,395,651.66 and 839,641.98 is: 1,157,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,996.90 : 1,395,651.66 = 839,641.98 : x
  2. Step 2: Convert to fraction form
    1,011,996.90/1,395,651.66 = 839,641.98/x
  3. Step 3: Cross multiply
    1,011,996.90x = 1,395,651.66 × 839,641.98
  4. Step 4: Simplify right side
    1,011,996.90x = 1,171,847,723,192.69
  5. Step 5: Solve for x
    x = 1,171,847,723,192.69/1,011,996.90
  6. Step 6: Final answer
    x = 1,157,955.84

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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.