Home / 1,188,749.34-1,640,474.06-679,462.65

Finding the Fourth Proportional to 1,188,749.34, 1,640,474.06 and 679,462.65

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Solution

The fourth proportional to 1,188,749.34, 1,640,474.06 and 679,462.65 is: 937,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,749.34 : 1,640,474.06 = 679,462.65 : x
  2. Step 2: Convert to fraction form
    1,188,749.34/1,640,474.06 = 679,462.65/x
  3. Step 3: Cross multiply
    1,188,749.34x = 1,640,474.06 × 679,462.65
  4. Step 4: Simplify right side
    1,188,749.34x = 1,114,640,848,666.55
  5. Step 5: Solve for x
    x = 1,114,640,848,666.55/1,188,749.34
  6. Step 6: Final answer
    x = 937,658.44

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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.