Home / 777,515.60-1,166,273.40-328,743.20

Finding the Fourth Proportional to 777,515.60, 1,166,273.40 and 328,743.20

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Solution

The fourth proportional to 777,515.60, 1,166,273.40 and 328,743.20 is: 493,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,515.60 : 1,166,273.40 = 328,743.20 : x
  2. Step 2: Convert to fraction form
    777,515.60/1,166,273.40 = 328,743.20/x
  3. Step 3: Cross multiply
    777,515.60x = 1,166,273.40 × 328,743.20
  4. Step 4: Simplify right side
    777,515.60x = 383,404,449,590.88
  5. Step 5: Solve for x
    x = 383,404,449,590.88/777,515.60
  6. Step 6: Final answer
    x = 493,114.80

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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.