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Finding the Fourth Proportional to 452,419.51, 678,628.69 and 115,460.17

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Solution

The fourth proportional to 452,419.51, 678,628.69 and 115,460.17 is: 173,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,419.51 : 678,628.69 = 115,460.17 : x
  2. Step 2: Convert to fraction form
    452,419.51/678,628.69 = 115,460.17/x
  3. Step 3: Cross multiply
    452,419.51x = 678,628.69 × 115,460.17
  4. Step 4: Simplify right side
    452,419.51x = 78,354,581,929.06
  5. Step 5: Solve for x
    x = 78,354,581,929.06/452,419.51
  6. Step 6: Final answer
    x = 173,190.10

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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.