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Finding the Fourth Proportional to 490,162.54, 676,598.12 and 296,580.24

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Solution

The fourth proportional to 490,162.54, 676,598.12 and 296,580.24 is: 409,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,162.54 : 676,598.12 = 296,580.24 : x
  2. Step 2: Convert to fraction form
    490,162.54/676,598.12 = 296,580.24/x
  3. Step 3: Cross multiply
    490,162.54x = 676,598.12 × 296,580.24
  4. Step 4: Simplify right side
    490,162.54x = 200,665,632,813.15
  5. Step 5: Solve for x
    x = 200,665,632,813.15/490,162.54
  6. Step 6: Final answer
    x = 409,385.90

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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.