Home / 869,139.90-1,301,085.45-764,163.90

Finding the Fourth Proportional to 869,139.90, 1,301,085.45 and 764,163.90

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Solution

The fourth proportional to 869,139.90, 1,301,085.45 and 764,163.90 is: 1,143,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,139.90 : 1,301,085.45 = 764,163.90 : x
  2. Step 2: Convert to fraction form
    869,139.90/1,301,085.45 = 764,163.90/x
  3. Step 3: Cross multiply
    869,139.90x = 1,301,085.45 × 764,163.90
  4. Step 4: Simplify right side
    869,139.90x = 994,242,531,705.26
  5. Step 5: Solve for x
    x = 994,242,531,705.26/869,139.90
  6. Step 6: Final answer
    x = 1,143,938.43

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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.