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Finding the Fourth Proportional to 452,419.41, 678,628.55 and 115,460.07

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Solution

The fourth proportional to 452,419.41, 678,628.55 and 115,460.07 is: 173,189.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,419.41 : 678,628.55 = 115,460.07 : x
  2. Step 2: Convert to fraction form
    452,419.41/678,628.55 = 115,460.07/x
  3. Step 3: Cross multiply
    452,419.41x = 678,628.55 × 115,460.07
  4. Step 4: Simplify right side
    452,419.41x = 78,354,501,854.56
  5. Step 5: Solve for x
    x = 78,354,501,854.56/452,419.41
  6. Step 6: Final answer
    x = 173,189.96

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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.