Home / 958,961.76-1,438,728.84-285,065.52

Finding the Fourth Proportional to 958,961.76, 1,438,728.84 and 285,065.52

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Solution

The fourth proportional to 958,961.76, 1,438,728.84 and 285,065.52 is: 427,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,961.76 : 1,438,728.84 = 285,065.52 : x
  2. Step 2: Convert to fraction form
    958,961.76/1,438,728.84 = 285,065.52/x
  3. Step 3: Cross multiply
    958,961.76x = 1,438,728.84 × 285,065.52
  4. Step 4: Simplify right side
    958,961.76x = 410,131,984,913.60
  5. Step 5: Solve for x
    x = 410,131,984,913.60/958,961.76
  6. Step 6: Final answer
    x = 427,683.36

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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.