Home / 1,128,112.11-1,556,542.88-668,993.38

Finding the Fourth Proportional to 1,128,112.11, 1,556,542.88 and 668,993.38

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Solution

The fourth proportional to 1,128,112.11, 1,556,542.88 and 668,993.38 is: 923,061.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,112.11 : 1,556,542.88 = 668,993.38 : x
  2. Step 2: Convert to fraction form
    1,128,112.11/1,556,542.88 = 668,993.38/x
  3. Step 3: Cross multiply
    1,128,112.11x = 1,556,542.88 × 668,993.38
  4. Step 4: Simplify right side
    1,128,112.11x = 1,041,316,877,678.54
  5. Step 5: Solve for x
    x = 1,041,316,877,678.54/1,128,112.11
  6. Step 6: Final answer
    x = 923,061.52

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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.