Home / 670,135.66-1,005,201.52-270,771.78

Finding the Fourth Proportional to 670,135.66, 1,005,201.52 and 270,771.78

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Solution

The fourth proportional to 670,135.66, 1,005,201.52 and 270,771.78 is: 406,156.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,135.66 : 1,005,201.52 = 270,771.78 : x
  2. Step 2: Convert to fraction form
    670,135.66/1,005,201.52 = 270,771.78/x
  3. Step 3: Cross multiply
    670,135.66x = 1,005,201.52 × 270,771.78
  4. Step 4: Simplify right side
    670,135.66x = 272,180,204,829.11
  5. Step 5: Solve for x
    x = 272,180,204,829.11/670,135.66
  6. Step 6: Final answer
    x = 406,156.87

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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.