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Finding the Fourth Proportional to 475,317.39, 655,938 and 274,113.39

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Solution

The fourth proportional to 475,317.39, 655,938 and 274,113.39 is: 378,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,317.39 : 655,938 = 274,113.39 : x
  2. Step 2: Convert to fraction form
    475,317.39/655,938 = 274,113.39/x
  3. Step 3: Cross multiply
    475,317.39x = 655,938 × 274,113.39
  4. Step 4: Simplify right side
    475,317.39x = 179,801,388,809.82
  5. Step 5: Solve for x
    x = 179,801,388,809.82/475,317.39
  6. Step 6: Final answer
    x = 378,276.48

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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.