Home / 1,555,234-2,146,222.92-839,842

Finding the Fourth Proportional to 1,555,234, 2,146,222.92 and 839,842

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Solution

The fourth proportional to 1,555,234, 2,146,222.92 and 839,842 is: 1,158,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,234 : 2,146,222.92 = 839,842 : x
  2. Step 2: Convert to fraction form
    1,555,234/2,146,222.92 = 839,842/x
  3. Step 3: Cross multiply
    1,555,234x = 2,146,222.92 × 839,842
  4. Step 4: Simplify right side
    1,555,234x = 1,802,488,149,578.64
  5. Step 5: Solve for x
    x = 1,802,488,149,578.64/1,555,234
  6. Step 6: Final answer
    x = 1,158,981.96

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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.