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Finding the Fourth Proportional to 481,908.09, 665,050.32 and 290,884.17

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Solution

The fourth proportional to 481,908.09, 665,050.32 and 290,884.17 is: 401,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,908.09 : 665,050.32 = 290,884.17 : x
  2. Step 2: Convert to fraction form
    481,908.09/665,050.32 = 290,884.17/x
  3. Step 3: Cross multiply
    481,908.09x = 665,050.32 × 290,884.17
  4. Step 4: Simplify right side
    481,908.09x = 193,452,610,341.43
  5. Step 5: Solve for x
    x = 193,452,610,341.43/481,908.09
  6. Step 6: Final answer
    x = 401,430.51

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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.