Home / 1,188,239.22-1,639,770.54-644,374.83

Finding the Fourth Proportional to 1,188,239.22, 1,639,770.54 and 644,374.83

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Solution

The fourth proportional to 1,188,239.22, 1,639,770.54 and 644,374.83 is: 889,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,239.22 : 1,639,770.54 = 644,374.83 : x
  2. Step 2: Convert to fraction form
    1,188,239.22/1,639,770.54 = 644,374.83/x
  3. Step 3: Cross multiply
    1,188,239.22x = 1,639,770.54 × 644,374.83
  4. Step 4: Simplify right side
    1,188,239.22x = 1,056,626,862,951.51
  5. Step 5: Solve for x
    x = 1,056,626,862,951.51/1,188,239.22
  6. Step 6: Final answer
    x = 889,237.49

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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.