Home / 764,688.96-1,147,012.80-365,611.20

Finding the Fourth Proportional to 764,688.96, 1,147,012.80 and 365,611.20

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Solution

The fourth proportional to 764,688.96, 1,147,012.80 and 365,611.20 is: 548,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,688.96 : 1,147,012.80 = 365,611.20 : x
  2. Step 2: Convert to fraction form
    764,688.96/1,147,012.80 = 365,611.20/x
  3. Step 3: Cross multiply
    764,688.96x = 1,147,012.80 × 365,611.20
  4. Step 4: Simplify right side
    764,688.96x = 419,360,726,223.36
  5. Step 5: Solve for x
    x = 419,360,726,223.36/764,688.96
  6. Step 6: Final answer
    x = 548,406.93

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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.