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Finding the Fourth Proportional to 475,507.26, 655,817.38 and 418,023.67

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Solution

The fourth proportional to 475,507.26, 655,817.38 and 418,023.67 is: 576,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,507.26 : 655,817.38 = 418,023.67 : x
  2. Step 2: Convert to fraction form
    475,507.26/655,817.38 = 418,023.67/x
  3. Step 3: Cross multiply
    475,507.26x = 655,817.38 × 418,023.67
  4. Step 4: Simplify right side
    475,507.26x = 274,147,188,037.39
  5. Step 5: Solve for x
    x = 274,147,188,037.39/475,507.26
  6. Step 6: Final answer
    x = 576,536.28

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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.