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Finding the Fourth Proportional to 490,062.48, 676,359.36 and 299,186.52

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Solution

The fourth proportional to 490,062.48, 676,359.36 and 299,186.52 is: 412,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,062.48 : 676,359.36 = 299,186.52 : x
  2. Step 2: Convert to fraction form
    490,062.48/676,359.36 = 299,186.52/x
  3. Step 3: Cross multiply
    490,062.48x = 676,359.36 × 299,186.52
  4. Step 4: Simplify right side
    490,062.48x = 202,357,603,187.83
  5. Step 5: Solve for x
    x = 202,357,603,187.83/490,062.48
  6. Step 6: Final answer
    x = 412,922.05

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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.