Home / 1,555,330-2,146,355.43-839,938

Finding the Fourth Proportional to 1,555,330, 2,146,355.43 and 839,938

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Solution

The fourth proportional to 1,555,330, 2,146,355.43 and 839,938 is: 1,159,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,330 : 2,146,355.43 = 839,938 : x
  2. Step 2: Convert to fraction form
    1,555,330/2,146,355.43 = 839,938/x
  3. Step 3: Cross multiply
    1,555,330x = 2,146,355.43 × 839,938
  4. Step 4: Simplify right side
    1,555,330x = 1,802,805,487,163.34
  5. Step 5: Solve for x
    x = 1,802,805,487,163.34/1,555,330
  6. Step 6: Final answer
    x = 1,159,114.46

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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.