Home / 488,919.10-731,629.05-446,928.70

Finding the Fourth Proportional to 488,919.10, 731,629.05 and 446,928.70

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Solution

The fourth proportional to 488,919.10, 731,629.05 and 446,928.70 is: 668,793.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,919.10 : 731,629.05 = 446,928.70 : x
  2. Step 2: Convert to fraction form
    488,919.10/731,629.05 = 446,928.70/x
  3. Step 3: Cross multiply
    488,919.10x = 731,629.05 × 446,928.70
  4. Step 4: Simplify right side
    488,919.10x = 326,986,020,198.74
  5. Step 5: Solve for x
    x = 326,986,020,198.74/488,919.10
  6. Step 6: Final answer
    x = 668,793.71

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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.