Home / 768,998.40-1,152,883.20-325,401.60

Finding the Fourth Proportional to 768,998.40, 1,152,883.20 and 325,401.60

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Solution

The fourth proportional to 768,998.40, 1,152,883.20 and 325,401.60 is: 487,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,998.40 : 1,152,883.20 = 325,401.60 : x
  2. Step 2: Convert to fraction form
    768,998.40/1,152,883.20 = 325,401.60/x
  3. Step 3: Cross multiply
    768,998.40x = 1,152,883.20 × 325,401.60
  4. Step 4: Simplify right side
    768,998.40x = 375,150,037,893.12
  5. Step 5: Solve for x
    x = 375,150,037,893.12/768,998.40
  6. Step 6: Final answer
    x = 487,842.42

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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.