Home / 681,021.24-939,800.72-375,091.52

Finding the Fourth Proportional to 681,021.24, 939,800.72 and 375,091.52

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Solution

The fourth proportional to 681,021.24, 939,800.72 and 375,091.52 is: 517,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,021.24 : 939,800.72 = 375,091.52 : x
  2. Step 2: Convert to fraction form
    681,021.24/939,800.72 = 375,091.52/x
  3. Step 3: Cross multiply
    681,021.24x = 939,800.72 × 375,091.52
  4. Step 4: Simplify right side
    681,021.24x = 352,511,280,561.89
  5. Step 5: Solve for x
    x = 352,511,280,561.89/681,021.24
  6. Step 6: Final answer
    x = 517,621.57

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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.