Home / 645,759.56-968,629.62-290,522.72

Finding the Fourth Proportional to 645,759.56, 968,629.62 and 290,522.72

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Solution

The fourth proportional to 645,759.56, 968,629.62 and 290,522.72 is: 435,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,759.56 : 968,629.62 = 290,522.72 : x
  2. Step 2: Convert to fraction form
    645,759.56/968,629.62 = 290,522.72/x
  3. Step 3: Cross multiply
    645,759.56x = 968,629.62 × 290,522.72
  4. Step 4: Simplify right side
    645,759.56x = 281,408,911,874.97
  5. Step 5: Solve for x
    x = 281,408,911,874.97/645,759.56
  6. Step 6: Final answer
    x = 435,779.71

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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.