Home / 743,564.98-1,115,345.17-211,086.37

Finding the Fourth Proportional to 743,564.98, 1,115,345.17 and 211,086.37

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Solution

The fourth proportional to 743,564.98, 1,115,345.17 and 211,086.37 is: 316,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,564.98 : 1,115,345.17 = 211,086.37 : x
  2. Step 2: Convert to fraction form
    743,564.98/1,115,345.17 = 211,086.37/x
  3. Step 3: Cross multiply
    743,564.98x = 1,115,345.17 × 211,086.37
  4. Step 4: Simplify right side
    743,564.98x = 235,434,163,232.33
  5. Step 5: Solve for x
    x = 235,434,163,232.33/743,564.98
  6. Step 6: Final answer
    x = 316,628.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.