Home / 643,418.20-964,812.84-264,237.58

Finding the Fourth Proportional to 643,418.20, 964,812.84 and 264,237.58

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Solution

The fourth proportional to 643,418.20, 964,812.84 and 264,237.58 is: 396,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,418.20 : 964,812.84 = 264,237.58 : x
  2. Step 2: Convert to fraction form
    643,418.20/964,812.84 = 264,237.58/x
  3. Step 3: Cross multiply
    643,418.20x = 964,812.84 × 264,237.58
  4. Step 4: Simplify right side
    643,418.20x = 254,939,809,994.53
  5. Step 5: Solve for x
    x = 254,939,809,994.53/643,418.20
  6. Step 6: Final answer
    x = 396,227.23

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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.