Home / 1,555,230-2,146,217.40-839,838

Finding the Fourth Proportional to 1,555,230, 2,146,217.40 and 839,838

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Solution

The fourth proportional to 1,555,230, 2,146,217.40 and 839,838 is: 1,158,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,230 : 2,146,217.40 = 839,838 : x
  2. Step 2: Convert to fraction form
    1,555,230/2,146,217.40 = 839,838/x
  3. Step 3: Cross multiply
    1,555,230x = 2,146,217.40 × 839,838
  4. Step 4: Simplify right side
    1,555,230x = 1,802,474,928,781.20
  5. Step 5: Solve for x
    x = 1,802,474,928,781.20/1,555,230
  6. Step 6: Final answer
    x = 1,158,976.44

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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.