Home / 646,638.75-892,204.11-425,853.24

Finding the Fourth Proportional to 646,638.75, 892,204.11 and 425,853.24

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Solution

The fourth proportional to 646,638.75, 892,204.11 and 425,853.24 is: 587,573.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,638.75 : 892,204.11 = 425,853.24 : x
  2. Step 2: Convert to fraction form
    646,638.75/892,204.11 = 425,853.24/x
  3. Step 3: Cross multiply
    646,638.75x = 892,204.11 × 425,853.24
  4. Step 4: Simplify right side
    646,638.75x = 379,948,010,984.82
  5. Step 5: Solve for x
    x = 379,948,010,984.82/646,638.75
  6. Step 6: Final answer
    x = 587,573.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.