Home / 1,221,211.51-1,685,473.67-677,522.46

Finding the Fourth Proportional to 1,221,211.51, 1,685,473.67 and 677,522.46

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Solution

The fourth proportional to 1,221,211.51, 1,685,473.67 and 677,522.46 is: 935,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,211.51 : 1,685,473.67 = 677,522.46 : x
  2. Step 2: Convert to fraction form
    1,221,211.51/1,685,473.67 = 677,522.46/x
  3. Step 3: Cross multiply
    1,221,211.51x = 1,685,473.67 × 677,522.46
  4. Step 4: Simplify right side
    1,221,211.51x = 1,141,946,266,316.73
  5. Step 5: Solve for x
    x = 1,141,946,266,316.73/1,221,211.51
  6. Step 6: Final answer
    x = 935,092.94

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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.