Home / 461,387.12-636,316.44-300,183.28

Finding the Fourth Proportional to 461,387.12, 636,316.44 and 300,183.28

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Solution

The fourth proportional to 461,387.12, 636,316.44 and 300,183.28 is: 413,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,387.12 : 636,316.44 = 300,183.28 : x
  2. Step 2: Convert to fraction form
    461,387.12/636,316.44 = 300,183.28/x
  3. Step 3: Cross multiply
    461,387.12x = 636,316.44 × 300,183.28
  4. Step 4: Simplify right side
    461,387.12x = 191,011,556,077.12
  5. Step 5: Solve for x
    x = 191,011,556,077.12/461,387.12
  6. Step 6: Final answer
    x = 413,994.12

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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.