Home / 641,822.75-885,715.43-351,452.64

Finding the Fourth Proportional to 641,822.75, 885,715.43 and 351,452.64

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Solution

The fourth proportional to 641,822.75, 885,715.43 and 351,452.64 is: 485,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,822.75 : 885,715.43 = 351,452.64 : x
  2. Step 2: Convert to fraction form
    641,822.75/885,715.43 = 351,452.64/x
  3. Step 3: Cross multiply
    641,822.75x = 885,715.43 × 351,452.64
  4. Step 4: Simplify right side
    641,822.75x = 311,287,026,162.24
  5. Step 5: Solve for x
    x = 311,287,026,162.24/641,822.75
  6. Step 6: Final answer
    x = 485,004.66

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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.