Home / 959,702.40-1,438,698-486,144

Finding the Fourth Proportional to 959,702.40, 1,438,698 and 486,144

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Solution

The fourth proportional to 959,702.40, 1,438,698 and 486,144 is: 728,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,702.40 : 1,438,698 = 486,144 : x
  2. Step 2: Convert to fraction form
    959,702.40/1,438,698 = 486,144/x
  3. Step 3: Cross multiply
    959,702.40x = 1,438,698 × 486,144
  4. Step 4: Simplify right side
    959,702.40x = 699,414,400,512
  5. Step 5: Solve for x
    x = 699,414,400,512/959,702.40
  6. Step 6: Final answer
    x = 728,782.59

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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.