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Finding the Fourth Proportional to 490,327.17, 676,615.11 and 275,503.02

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Solution

The fourth proportional to 490,327.17, 676,615.11 and 275,503.02 is: 380,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,327.17 : 676,615.11 = 275,503.02 : x
  2. Step 2: Convert to fraction form
    490,327.17/676,615.11 = 275,503.02/x
  3. Step 3: Cross multiply
    490,327.17x = 676,615.11 × 275,503.02
  4. Step 4: Simplify right side
    490,327.17x = 186,409,506,182.63
  5. Step 5: Solve for x
    x = 186,409,506,182.63/490,327.17
  6. Step 6: Final answer
    x = 380,173.72

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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.