Home / 1,231,397.21-1,699,611.59-722,263.61

Finding the Fourth Proportional to 1,231,397.21, 1,699,611.59 and 722,263.61

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Solution

The fourth proportional to 1,231,397.21, 1,699,611.59 and 722,263.61 is: 996,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,397.21 : 1,699,611.59 = 722,263.61 : x
  2. Step 2: Convert to fraction form
    1,231,397.21/1,699,611.59 = 722,263.61/x
  3. Step 3: Cross multiply
    1,231,397.21x = 1,699,611.59 × 722,263.61
  4. Step 4: Simplify right side
    1,231,397.21x = 1,227,567,602,591.24
  5. Step 5: Solve for x
    x = 1,227,567,602,591.24/1,231,397.21
  6. Step 6: Final answer
    x = 996,890.03

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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.