Home / 689,708.82-1,034,563.65-191,072.82

Finding the Fourth Proportional to 689,708.82, 1,034,563.65 and 191,072.82

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Solution

The fourth proportional to 689,708.82, 1,034,563.65 and 191,072.82 is: 286,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,708.82 : 1,034,563.65 = 191,072.82 : x
  2. Step 2: Convert to fraction form
    689,708.82/1,034,563.65 = 191,072.82/x
  3. Step 3: Cross multiply
    689,708.82x = 1,034,563.65 × 191,072.82
  4. Step 4: Simplify right side
    689,708.82x = 197,676,994,074.99
  5. Step 5: Solve for x
    x = 197,676,994,074.99/689,708.82
  6. Step 6: Final answer
    x = 286,609.35

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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.