Home / 727,838.66-1,004,403.96-396,697.38

Finding the Fourth Proportional to 727,838.66, 1,004,403.96 and 396,697.38

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Solution

The fourth proportional to 727,838.66, 1,004,403.96 and 396,697.38 is: 547,435.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,838.66 : 1,004,403.96 = 396,697.38 : x
  2. Step 2: Convert to fraction form
    727,838.66/1,004,403.96 = 396,697.38/x
  3. Step 3: Cross multiply
    727,838.66x = 1,004,403.96 × 396,697.38
  4. Step 4: Simplify right side
    727,838.66x = 398,444,419,393.63
  5. Step 5: Solve for x
    x = 398,444,419,393.63/727,838.66
  6. Step 6: Final answer
    x = 547,435.09

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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.