Home / 1,409,465.89-1,945,077.20-764,891.65

Finding the Fourth Proportional to 1,409,465.89, 1,945,077.20 and 764,891.65

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Solution

The fourth proportional to 1,409,465.89, 1,945,077.20 and 764,891.65 is: 1,055,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,465.89 : 1,945,077.20 = 764,891.65 : x
  2. Step 2: Convert to fraction form
    1,409,465.89/1,945,077.20 = 764,891.65/x
  3. Step 3: Cross multiply
    1,409,465.89x = 1,945,077.20 × 764,891.65
  4. Step 4: Simplify right side
    1,409,465.89x = 1,487,773,308,885.38
  5. Step 5: Solve for x
    x = 1,487,773,308,885.38/1,409,465.89
  6. Step 6: Final answer
    x = 1,055,558.22

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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.