Home / 764,543.27-1,146,953.21-315,014.09

Finding the Fourth Proportional to 764,543.27, 1,146,953.21 and 315,014.09

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Solution

The fourth proportional to 764,543.27, 1,146,953.21 and 315,014.09 is: 472,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,543.27 : 1,146,953.21 = 315,014.09 : x
  2. Step 2: Convert to fraction form
    764,543.27/1,146,953.21 = 315,014.09/x
  3. Step 3: Cross multiply
    764,543.27x = 1,146,953.21 × 315,014.09
  4. Step 4: Simplify right side
    764,543.27x = 361,306,414,410.89
  5. Step 5: Solve for x
    x = 361,306,414,410.89/764,543.27
  6. Step 6: Final answer
    x = 472,578.11

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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.