Home / 754,101.72-1,040,313.60-668,147.76

Finding the Fourth Proportional to 754,101.72, 1,040,313.60 and 668,147.76

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Solution

The fourth proportional to 754,101.72, 1,040,313.60 and 668,147.76 is: 921,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,101.72 : 1,040,313.60 = 668,147.76 : x
  2. Step 2: Convert to fraction form
    754,101.72/1,040,313.60 = 668,147.76/x
  3. Step 3: Cross multiply
    754,101.72x = 1,040,313.60 × 668,147.76
  4. Step 4: Simplify right side
    754,101.72x = 695,083,201,537.54
  5. Step 5: Solve for x
    x = 695,083,201,537.54/754,101.72
  6. Step 6: Final answer
    x = 921,736.66

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1.5x scale

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.