Home / 764,415.60-1,146,623.40-512,473.20

Finding the Fourth Proportional to 764,415.60, 1,146,623.40 and 512,473.20

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Solution

The fourth proportional to 764,415.60, 1,146,623.40 and 512,473.20 is: 768,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,415.60 : 1,146,623.40 = 512,473.20 : x
  2. Step 2: Convert to fraction form
    764,415.60/1,146,623.40 = 512,473.20/x
  3. Step 3: Cross multiply
    764,415.60x = 1,146,623.40 × 512,473.20
  4. Step 4: Simplify right side
    764,415.60x = 587,613,762,992.88
  5. Step 5: Solve for x
    x = 587,613,762,992.88/764,415.60
  6. Step 6: Final answer
    x = 768,709.80

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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.