Home / 452,046.34-678,058.57-115,087.72

Finding the Fourth Proportional to 452,046.34, 678,058.57 and 115,087.72

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Solution

The fourth proportional to 452,046.34, 678,058.57 and 115,087.72 is: 172,628.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,046.34 : 678,058.57 = 115,087.72 : x
  2. Step 2: Convert to fraction form
    452,046.34/678,058.57 = 115,087.72/x
  3. Step 3: Cross multiply
    452,046.34x = 678,058.57 × 115,087.72
  4. Step 4: Simplify right side
    452,046.34x = 78,036,214,847.76
  5. Step 5: Solve for x
    x = 78,036,214,847.76/452,046.34
  6. Step 6: Final answer
    x = 172,628.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.