Home / 729,115.40-1,093,673.10-408,938.60

Finding the Fourth Proportional to 729,115.40, 1,093,673.10 and 408,938.60

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Solution

The fourth proportional to 729,115.40, 1,093,673.10 and 408,938.60 is: 613,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,115.40 : 1,093,673.10 = 408,938.60 : x
  2. Step 2: Convert to fraction form
    729,115.40/1,093,673.10 = 408,938.60/x
  3. Step 3: Cross multiply
    729,115.40x = 1,093,673.10 × 408,938.60
  4. Step 4: Simplify right side
    729,115.40x = 447,245,146,371.66
  5. Step 5: Solve for x
    x = 447,245,146,371.66/729,115.40
  6. Step 6: Final answer
    x = 613,407.90

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1.5x scale

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.