Home / 903,989.40-1,355,940.90-304,891.80

Finding the Fourth Proportional to 903,989.40, 1,355,940.90 and 304,891.80

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Solution

The fourth proportional to 903,989.40, 1,355,940.90 and 304,891.80 is: 457,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,989.40 : 1,355,940.90 = 304,891.80 : x
  2. Step 2: Convert to fraction form
    903,989.40/1,355,940.90 = 304,891.80/x
  3. Step 3: Cross multiply
    903,989.40x = 1,355,940.90 × 304,891.80
  4. Step 4: Simplify right side
    903,989.40x = 413,415,261,694.62
  5. Step 5: Solve for x
    x = 413,415,261,694.62/903,989.40
  6. Step 6: Final answer
    x = 457,323.13

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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.