Home / 1,615,009.47-2,228,012.82-961,268.90

Finding the Fourth Proportional to 1,615,009.47, 2,228,012.82 and 961,268.90

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Solution

The fourth proportional to 1,615,009.47, 2,228,012.82 and 961,268.90 is: 1,326,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,009.47 : 2,228,012.82 = 961,268.90 : x
  2. Step 2: Convert to fraction form
    1,615,009.47/2,228,012.82 = 961,268.90/x
  3. Step 3: Cross multiply
    1,615,009.47x = 2,228,012.82 × 961,268.90
  4. Step 4: Simplify right side
    1,615,009.47x = 2,141,719,425,704.76
  5. Step 5: Solve for x
    x = 2,141,719,425,704.76/1,615,009.47
  6. Step 6: Final answer
    x = 1,326,134.28

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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.