Home / 490,304.17-676,604.10-272,511.78

Finding the Fourth Proportional to 490,304.17, 676,604.10 and 272,511.78

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Solution

The fourth proportional to 490,304.17, 676,604.10 and 272,511.78 is: 376,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,304.17 : 676,604.10 = 272,511.78 : x
  2. Step 2: Convert to fraction form
    490,304.17/676,604.10 = 272,511.78/x
  3. Step 3: Cross multiply
    490,304.17x = 676,604.10 × 272,511.78
  4. Step 4: Simplify right side
    490,304.17x = 184,382,587,646.30
  5. Step 5: Solve for x
    x = 184,382,587,646.30/490,304.17
  6. Step 6: Final answer
    x = 376,057.56

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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.