Home / 903,308.70-1,355,145.30-263,611.20

Finding the Fourth Proportional to 903,308.70, 1,355,145.30 and 263,611.20

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Solution

The fourth proportional to 903,308.70, 1,355,145.30 and 263,611.20 is: 395,469.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,308.70 : 1,355,145.30 = 263,611.20 : x
  2. Step 2: Convert to fraction form
    903,308.70/1,355,145.30 = 263,611.20/x
  3. Step 3: Cross multiply
    903,308.70x = 1,355,145.30 × 263,611.20
  4. Step 4: Simplify right side
    903,308.70x = 357,231,478,707.36
  5. Step 5: Solve for x
    x = 357,231,478,707.36/903,308.70
  6. Step 6: Final answer
    x = 395,469.99

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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.