Home / 380,863.20-571,440.60-374,885.40

Finding the Fourth Proportional to 380,863.20, 571,440.60 and 374,885.40

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Solution

The fourth proportional to 380,863.20, 571,440.60 and 374,885.40 is: 562,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,863.20 : 571,440.60 = 374,885.40 : x
  2. Step 2: Convert to fraction form
    380,863.20/571,440.60 = 374,885.40/x
  3. Step 3: Cross multiply
    380,863.20x = 571,440.60 × 374,885.40
  4. Step 4: Simplify right side
    380,863.20x = 214,224,737,907.24
  5. Step 5: Solve for x
    x = 214,224,737,907.24/380,863.20
  6. Step 6: Final answer
    x = 562,471.61

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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.