Home / 764,064.22-1,146,325.29-308,420.86

Finding the Fourth Proportional to 764,064.22, 1,146,325.29 and 308,420.86

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Solution

The fourth proportional to 764,064.22, 1,146,325.29 and 308,420.86 is: 462,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,064.22 : 1,146,325.29 = 308,420.86 : x
  2. Step 2: Convert to fraction form
    764,064.22/1,146,325.29 = 308,420.86/x
  3. Step 3: Cross multiply
    764,064.22x = 1,146,325.29 × 308,420.86
  4. Step 4: Simplify right side
    764,064.22x = 353,550,631,781.55
  5. Step 5: Solve for x
    x = 353,550,631,781.55/764,064.22
  6. Step 6: Final answer
    x = 462,723.71

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1.5x scale

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.