Home / 1,188,743.08-1,640,465.43-679,456.38

Finding the Fourth Proportional to 1,188,743.08, 1,640,465.43 and 679,456.38

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Solution

The fourth proportional to 1,188,743.08, 1,640,465.43 and 679,456.38 is: 937,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,743.08 : 1,640,465.43 = 679,456.38 : x
  2. Step 2: Convert to fraction form
    1,188,743.08/1,640,465.43 = 679,456.38/x
  3. Step 3: Cross multiply
    1,188,743.08x = 1,640,465.43 × 679,456.38
  4. Step 4: Simplify right side
    1,188,743.08x = 1,114,624,702,582.94
  5. Step 5: Solve for x
    x = 1,114,624,702,582.94/1,188,743.08
  6. Step 6: Final answer
    x = 937,649.79

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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.