Home / 722,337.21-1,083,588.84-422,820.54

Finding the Fourth Proportional to 722,337.21, 1,083,588.84 and 422,820.54

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Solution

The fourth proportional to 722,337.21, 1,083,588.84 and 422,820.54 is: 634,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,337.21 : 1,083,588.84 = 422,820.54 : x
  2. Step 2: Convert to fraction form
    722,337.21/1,083,588.84 = 422,820.54/x
  3. Step 3: Cross multiply
    722,337.21x = 1,083,588.84 × 422,820.54
  4. Step 4: Simplify right side
    722,337.21x = 458,163,618,466.77
  5. Step 5: Solve for x
    x = 458,163,618,466.77/722,337.21
  6. Step 6: Final answer
    x = 634,279.41

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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.