Home / 715,213.88-1,073,007.36-415,406.22

Finding the Fourth Proportional to 715,213.88, 1,073,007.36 and 415,406.22

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Solution

The fourth proportional to 715,213.88, 1,073,007.36 and 415,406.22 is: 623,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,213.88 : 1,073,007.36 = 415,406.22 : x
  2. Step 2: Convert to fraction form
    715,213.88/1,073,007.36 = 415,406.22/x
  3. Step 3: Cross multiply
    715,213.88x = 1,073,007.36 × 415,406.22
  4. Step 4: Simplify right side
    715,213.88x = 445,733,931,449.78
  5. Step 5: Solve for x
    x = 445,733,931,449.78/715,213.88
  6. Step 6: Final answer
    x = 623,217.67

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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.