Home / 1,409,438.05-1,945,025.76-764,858.25

Finding the Fourth Proportional to 1,409,438.05, 1,945,025.76 and 764,858.25

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Solution

The fourth proportional to 1,409,438.05, 1,945,025.76 and 764,858.25 is: 1,055,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,438.05 : 1,945,025.76 = 764,858.25 : x
  2. Step 2: Convert to fraction form
    1,409,438.05/1,945,025.76 = 764,858.25/x
  3. Step 3: Cross multiply
    1,409,438.05x = 1,945,025.76 × 764,858.25
  4. Step 4: Simplify right side
    1,409,438.05x = 1,487,668,985,449.10
  5. Step 5: Solve for x
    x = 1,487,668,985,449.10/1,409,438.05
  6. Step 6: Final answer
    x = 1,055,505.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.