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Finding the Fourth Proportional to 407,847.82, 562,391.17 and 254,830.12

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Solution

The fourth proportional to 407,847.82, 562,391.17 and 254,830.12 is: 351,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,847.82 : 562,391.17 = 254,830.12 : x
  2. Step 2: Convert to fraction form
    407,847.82/562,391.17 = 254,830.12/x
  3. Step 3: Cross multiply
    407,847.82x = 562,391.17 × 254,830.12
  4. Step 4: Simplify right side
    407,847.82x = 143,314,209,338.04
  5. Step 5: Solve for x
    x = 143,314,209,338.04/407,847.82
  6. Step 6: Final answer
    x = 351,391.38

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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.