Home / 436,275.06-654,427.19-120,705.54

Finding the Fourth Proportional to 436,275.06, 654,427.19 and 120,705.54

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Solution

The fourth proportional to 436,275.06, 654,427.19 and 120,705.54 is: 181,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,275.06 : 654,427.19 = 120,705.54 : x
  2. Step 2: Convert to fraction form
    436,275.06/654,427.19 = 120,705.54/x
  3. Step 3: Cross multiply
    436,275.06x = 654,427.19 × 120,705.54
  4. Step 4: Simplify right side
    436,275.06x = 78,992,987,359.63
  5. Step 5: Solve for x
    x = 78,992,987,359.63/436,275.06
  6. Step 6: Final answer
    x = 181,062.35

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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.