Home / 743,992.70-1,026,718.54-412,855.43

Finding the Fourth Proportional to 743,992.70, 1,026,718.54 and 412,855.43

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Solution

The fourth proportional to 743,992.70, 1,026,718.54 and 412,855.43 is: 569,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,992.70 : 1,026,718.54 = 412,855.43 : x
  2. Step 2: Convert to fraction form
    743,992.70/1,026,718.54 = 412,855.43/x
  3. Step 3: Cross multiply
    743,992.70x = 1,026,718.54 × 412,855.43
  4. Step 4: Simplify right side
    743,992.70x = 423,886,326,542.82
  5. Step 5: Solve for x
    x = 423,886,326,542.82/743,992.70
  6. Step 6: Final answer
    x = 569,745.28

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1.5x scale

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.