Home / 764,881.80-1,147,322.70-631,912.20

Finding the Fourth Proportional to 764,881.80, 1,147,322.70 and 631,912.20

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Solution

The fourth proportional to 764,881.80, 1,147,322.70 and 631,912.20 is: 947,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,881.80 : 1,147,322.70 = 631,912.20 : x
  2. Step 2: Convert to fraction form
    764,881.80/1,147,322.70 = 631,912.20/x
  3. Step 3: Cross multiply
    764,881.80x = 1,147,322.70 × 631,912.20
  4. Step 4: Simplify right side
    764,881.80x = 725,007,211,466.94
  5. Step 5: Solve for x
    x = 725,007,211,466.94/764,881.80
  6. Step 6: Final answer
    x = 947,868.30

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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.