Home / 641,829.62-885,724.94-351,459.51

Finding the Fourth Proportional to 641,829.62, 885,724.94 and 351,459.51

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Solution

The fourth proportional to 641,829.62, 885,724.94 and 351,459.51 is: 485,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,829.62 : 885,724.94 = 351,459.51 : x
  2. Step 2: Convert to fraction form
    641,829.62/885,724.94 = 351,459.51/x
  3. Step 3: Cross multiply
    641,829.62x = 885,724.94 × 351,459.51
  4. Step 4: Simplify right side
    641,829.62x = 311,296,450,964.36
  5. Step 5: Solve for x
    x = 311,296,450,964.36/641,829.62
  6. Step 6: Final answer
    x = 485,014.15

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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.