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Finding the Fourth Proportional to 522,676.73, 721,206.44 and 307,859.55

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Solution

The fourth proportional to 522,676.73, 721,206.44 and 307,859.55 is: 424,794.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,676.73 : 721,206.44 = 307,859.55 : x
  2. Step 2: Convert to fraction form
    522,676.73/721,206.44 = 307,859.55/x
  3. Step 3: Cross multiply
    522,676.73x = 721,206.44 × 307,859.55
  4. Step 4: Simplify right side
    522,676.73x = 222,030,288,536.20
  5. Step 5: Solve for x
    x = 222,030,288,536.20/522,676.73
  6. Step 6: Final answer
    x = 424,794.67

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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.