Home / 436,481.31-654,749.63-136,973.72

Finding the Fourth Proportional to 436,481.31, 654,749.63 and 136,973.72

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Solution

The fourth proportional to 436,481.31, 654,749.63 and 136,973.72 is: 205,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,481.31 : 654,749.63 = 136,973.72 : x
  2. Step 2: Convert to fraction form
    436,481.31/654,749.63 = 136,973.72/x
  3. Step 3: Cross multiply
    436,481.31x = 654,749.63 × 136,973.72
  4. Step 4: Simplify right side
    436,481.31x = 89,683,488,531.11
  5. Step 5: Solve for x
    x = 89,683,488,531.11/436,481.31
  6. Step 6: Final answer
    x = 205,469.25

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1.5x scale

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.