Home / 1,128,072-1,556,739.36-618,775.56

Finding the Fourth Proportional to 1,128,072, 1,556,739.36 and 618,775.56

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Solution

The fourth proportional to 1,128,072, 1,556,739.36 and 618,775.56 is: 853,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,072 : 1,556,739.36 = 618,775.56 : x
  2. Step 2: Convert to fraction form
    1,128,072/1,556,739.36 = 618,775.56/x
  3. Step 3: Cross multiply
    1,128,072x = 1,556,739.36 × 618,775.56
  4. Step 4: Simplify right side
    1,128,072x = 963,272,269,258.04
  5. Step 5: Solve for x
    x = 963,272,269,258.04/1,128,072
  6. Step 6: Final answer
    x = 853,910.27

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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.