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Finding the Fourth Proportional to 548,632.83, 757,114.43 and 306,919.44

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Solution

The fourth proportional to 548,632.83, 757,114.43 and 306,919.44 is: 423,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,632.83 : 757,114.43 = 306,919.44 : x
  2. Step 2: Convert to fraction form
    548,632.83/757,114.43 = 306,919.44/x
  3. Step 3: Cross multiply
    548,632.83x = 757,114.43 × 306,919.44
  4. Step 4: Simplify right side
    548,632.83x = 232,373,135,336.92
  5. Step 5: Solve for x
    x = 232,373,135,336.92/548,632.83
  6. Step 6: Final answer
    x = 423,549.45

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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.