Home / 685,213.38-1,027,814.13-535,579.38

Finding the Fourth Proportional to 685,213.38, 1,027,814.13 and 535,579.38

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Solution

The fourth proportional to 685,213.38, 1,027,814.13 and 535,579.38 is: 803,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,213.38 : 1,027,814.13 = 535,579.38 : x
  2. Step 2: Convert to fraction form
    685,213.38/1,027,814.13 = 535,579.38/x
  3. Step 3: Cross multiply
    685,213.38x = 1,027,814.13 × 535,579.38
  4. Step 4: Simplify right side
    685,213.38x = 550,476,054,500.64
  5. Step 5: Solve for x
    x = 550,476,054,500.64/685,213.38
  6. Step 6: Final answer
    x = 803,364.43

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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.