Home / 1,485,123.50-2,227,328.44-685,636.94

Finding the Fourth Proportional to 1,485,123.50, 2,227,328.44 and 685,636.94

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Solution

The fourth proportional to 1,485,123.50, 2,227,328.44 and 685,636.94 is: 1,028,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,123.50 : 2,227,328.44 = 685,636.94 : x
  2. Step 2: Convert to fraction form
    1,485,123.50/2,227,328.44 = 685,636.94/x
  3. Step 3: Cross multiply
    1,485,123.50x = 2,227,328.44 × 685,636.94
  4. Step 4: Simplify right side
    1,485,123.50x = 1,527,138,655,976.57
  5. Step 5: Solve for x
    x = 1,527,138,655,976.57/1,485,123.50
  6. Step 6: Final answer
    x = 1,028,290.68

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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.