Home / 642,496.75-963,534.89-300,834.41

Finding the Fourth Proportional to 642,496.75, 963,534.89 and 300,834.41

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Solution

The fourth proportional to 642,496.75, 963,534.89 and 300,834.41 is: 451,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,496.75 : 963,534.89 = 300,834.41 : x
  2. Step 2: Convert to fraction form
    642,496.75/963,534.89 = 300,834.41/x
  3. Step 3: Cross multiply
    642,496.75x = 963,534.89 × 300,834.41
  4. Step 4: Simplify right side
    642,496.75x = 289,864,446,081.98
  5. Step 5: Solve for x
    x = 289,864,446,081.98/642,496.75
  6. Step 6: Final answer
    x = 451,153.17

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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.