Home / 856,450.50-1,284,255.38-423,667.94

Finding the Fourth Proportional to 856,450.50, 1,284,255.38 and 423,667.94

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Solution

The fourth proportional to 856,450.50, 1,284,255.38 and 423,667.94 is: 635,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,450.50 : 1,284,255.38 = 423,667.94 : x
  2. Step 2: Convert to fraction form
    856,450.50/1,284,255.38 = 423,667.94/x
  3. Step 3: Cross multiply
    856,450.50x = 1,284,255.38 × 423,667.94
  4. Step 4: Simplify right side
    856,450.50x = 544,097,831,278.52
  5. Step 5: Solve for x
    x = 544,097,831,278.52/856,450.50
  6. Step 6: Final answer
    x = 635,293.96

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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.