Home / 1,376,455.09-1,899,561.35-764,654.31

Finding the Fourth Proportional to 1,376,455.09, 1,899,561.35 and 764,654.31

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Solution

The fourth proportional to 1,376,455.09, 1,899,561.35 and 764,654.31 is: 1,055,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,455.09 : 1,899,561.35 = 764,654.31 : x
  2. Step 2: Convert to fraction form
    1,376,455.09/1,899,561.35 = 764,654.31/x
  3. Step 3: Cross multiply
    1,376,455.09x = 1,899,561.35 × 764,654.31
  4. Step 4: Simplify right side
    1,376,455.09x = 1,452,507,773,386.92
  5. Step 5: Solve for x
    x = 1,452,507,773,386.92/1,376,455.09
  6. Step 6: Final answer
    x = 1,055,252.57

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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.