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Finding the Fourth Proportional to 490,078.08, 676,254.24 and 275,241.60

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Solution

The fourth proportional to 490,078.08, 676,254.24 and 275,241.60 is: 379,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,078.08 : 676,254.24 = 275,241.60 : x
  2. Step 2: Convert to fraction form
    490,078.08/676,254.24 = 275,241.60/x
  3. Step 3: Cross multiply
    490,078.08x = 676,254.24 × 275,241.60
  4. Step 4: Simplify right side
    490,078.08x = 186,133,299,024.38
  5. Step 5: Solve for x
    x = 186,133,299,024.38/490,078.08
  6. Step 6: Final answer
    x = 379,803.36

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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.