Home / 869,123.40-1,301,060.70-764,147.40

Finding the Fourth Proportional to 869,123.40, 1,301,060.70 and 764,147.40

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Solution

The fourth proportional to 869,123.40, 1,301,060.70 and 764,147.40 is: 1,143,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,123.40 : 1,301,060.70 = 764,147.40 : x
  2. Step 2: Convert to fraction form
    869,123.40/1,301,060.70 = 764,147.40/x
  3. Step 3: Cross multiply
    869,123.40x = 1,301,060.70 × 764,147.40
  4. Step 4: Simplify right side
    869,123.40x = 994,202,151,147.18
  5. Step 5: Solve for x
    x = 994,202,151,147.18/869,123.40
  6. Step 6: Final answer
    x = 1,143,913.68

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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.