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Finding the Fourth Proportional to 580,640.90, 801,263.84 and 326,002.82

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Solution

The fourth proportional to 580,640.90, 801,263.84 and 326,002.82 is: 449,872.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,640.90 : 801,263.84 = 326,002.82 : x
  2. Step 2: Convert to fraction form
    580,640.90/801,263.84 = 326,002.82/x
  3. Step 3: Cross multiply
    580,640.90x = 801,263.84 × 326,002.82
  4. Step 4: Simplify right side
    580,640.90x = 261,214,271,404.03
  5. Step 5: Solve for x
    x = 261,214,271,404.03/580,640.90
  6. Step 6: Final answer
    x = 449,872.32

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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.