Home / 1,201,386.72-1,802,139.96-359,858.28

Finding the Fourth Proportional to 1,201,386.72, 1,802,139.96 and 359,858.28

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Solution

The fourth proportional to 1,201,386.72, 1,802,139.96 and 359,858.28 is: 539,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,386.72 : 1,802,139.96 = 359,858.28 : x
  2. Step 2: Convert to fraction form
    1,201,386.72/1,802,139.96 = 359,858.28/x
  3. Step 3: Cross multiply
    1,201,386.72x = 1,802,139.96 × 359,858.28
  4. Step 4: Simplify right side
    1,201,386.72x = 648,514,986,324.87
  5. Step 5: Solve for x
    x = 648,514,986,324.87/1,201,386.72
  6. Step 6: Final answer
    x = 539,805.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.