Home / 1,259,687.48-1,890,623.09-661,071.56

Finding the Fourth Proportional to 1,259,687.48, 1,890,623.09 and 661,071.56

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Solution

The fourth proportional to 1,259,687.48, 1,890,623.09 and 661,071.56 is: 992,180.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,687.48 : 1,890,623.09 = 661,071.56 : x
  2. Step 2: Convert to fraction form
    1,259,687.48/1,890,623.09 = 661,071.56/x
  3. Step 3: Cross multiply
    1,259,687.48x = 1,890,623.09 × 661,071.56
  4. Step 4: Simplify right side
    1,259,687.48x = 1,249,837,142,719.85
  5. Step 5: Solve for x
    x = 1,249,837,142,719.85/1,259,687.48
  6. Step 6: Final answer
    x = 992,180.34

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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.