Home / 643,069.06-963,762.67-263,545.43

Finding the Fourth Proportional to 643,069.06, 963,762.67 and 263,545.43

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Solution

The fourth proportional to 643,069.06, 963,762.67 and 263,545.43 is: 394,973.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,069.06 : 963,762.67 = 263,545.43 : x
  2. Step 2: Convert to fraction form
    643,069.06/963,762.67 = 263,545.43/x
  3. Step 3: Cross multiply
    643,069.06x = 963,762.67 × 263,545.43
  4. Step 4: Simplify right side
    643,069.06x = 253,995,247,283.10
  5. Step 5: Solve for x
    x = 253,995,247,283.10/643,069.06
  6. Step 6: Final answer
    x = 394,973.52

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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.