Home / 704,733.85-1,054,940.78-388,221.85

Finding the Fourth Proportional to 704,733.85, 1,054,940.78 and 388,221.85

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Solution

The fourth proportional to 704,733.85, 1,054,940.78 and 388,221.85 is: 581,142.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,733.85 : 1,054,940.78 = 388,221.85 : x
  2. Step 2: Convert to fraction form
    704,733.85/1,054,940.78 = 388,221.85/x
  3. Step 3: Cross multiply
    704,733.85x = 1,054,940.78 × 388,221.85
  4. Step 4: Simplify right side
    704,733.85x = 409,551,059,310.93
  5. Step 5: Solve for x
    x = 409,551,059,310.93/704,733.85
  6. Step 6: Final answer
    x = 581,142.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.