Home / 685,204.02-1,027,389.87-343,249.79

Finding the Fourth Proportional to 685,204.02, 1,027,389.87 and 343,249.79

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Solution

The fourth proportional to 685,204.02, 1,027,389.87 and 343,249.79 is: 514,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,204.02 : 1,027,389.87 = 343,249.79 : x
  2. Step 2: Convert to fraction form
    685,204.02/1,027,389.87 = 343,249.79/x
  3. Step 3: Cross multiply
    685,204.02x = 1,027,389.87 × 343,249.79
  4. Step 4: Simplify right side
    685,204.02x = 352,651,351,988.68
  5. Step 5: Solve for x
    x = 352,651,351,988.68/685,204.02
  6. Step 6: Final answer
    x = 514,666.20

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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.