Home / 471,888.09-651,347.87-321,072.57

Finding the Fourth Proportional to 471,888.09, 651,347.87 and 321,072.57

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Solution

The fourth proportional to 471,888.09, 651,347.87 and 321,072.57 is: 443,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,888.09 : 651,347.87 = 321,072.57 : x
  2. Step 2: Convert to fraction form
    471,888.09/651,347.87 = 321,072.57/x
  3. Step 3: Cross multiply
    471,888.09x = 651,347.87 × 321,072.57
  4. Step 4: Simplify right side
    471,888.09x = 209,129,932,979.56
  5. Step 5: Solve for x
    x = 209,129,932,979.56/471,888.09
  6. Step 6: Final answer
    x = 443,176.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.