Home / 764,951.80-1,147,427.70-631,982.20

Finding the Fourth Proportional to 764,951.80, 1,147,427.70 and 631,982.20

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Solution

The fourth proportional to 764,951.80, 1,147,427.70 and 631,982.20 is: 947,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,951.80 : 1,147,427.70 = 631,982.20 : x
  2. Step 2: Convert to fraction form
    764,951.80/1,147,427.70 = 631,982.20/x
  3. Step 3: Cross multiply
    764,951.80x = 1,147,427.70 × 631,982.20
  4. Step 4: Simplify right side
    764,951.80x = 725,153,882,186.94
  5. Step 5: Solve for x
    x = 725,153,882,186.94/764,951.80
  6. Step 6: Final answer
    x = 947,973.30

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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.