Home / 436,789.64-655,111.56-121,278.44

Finding the Fourth Proportional to 436,789.64, 655,111.56 and 121,278.44

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Solution

The fourth proportional to 436,789.64, 655,111.56 and 121,278.44 is: 181,897.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,789.64 : 655,111.56 = 121,278.44 : x
  2. Step 2: Convert to fraction form
    436,789.64/655,111.56 = 121,278.44/x
  3. Step 3: Cross multiply
    436,789.64x = 655,111.56 × 121,278.44
  4. Step 4: Simplify right side
    436,789.64x = 79,450,908,022.77
  5. Step 5: Solve for x
    x = 79,450,908,022.77/436,789.64
  6. Step 6: Final answer
    x = 181,897.42

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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.