Home / 860,404.26-1,290,729.11-320,614.49

Finding the Fourth Proportional to 860,404.26, 1,290,729.11 and 320,614.49

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Solution

The fourth proportional to 860,404.26, 1,290,729.11 and 320,614.49 is: 480,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,404.26 : 1,290,729.11 = 320,614.49 : x
  2. Step 2: Convert to fraction form
    860,404.26/1,290,729.11 = 320,614.49/x
  3. Step 3: Cross multiply
    860,404.26x = 1,290,729.11 × 320,614.49
  4. Step 4: Simplify right side
    860,404.26x = 413,826,455,330.80
  5. Step 5: Solve for x
    x = 413,826,455,330.80/860,404.26
  6. Step 6: Final answer
    x = 480,967.46

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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.