Home / 1,207,324.20-1,810,986.30-408,631.80

Finding the Fourth Proportional to 1,207,324.20, 1,810,986.30 and 408,631.80

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Solution

The fourth proportional to 1,207,324.20, 1,810,986.30 and 408,631.80 is: 612,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,324.20 : 1,810,986.30 = 408,631.80 : x
  2. Step 2: Convert to fraction form
    1,207,324.20/1,810,986.30 = 408,631.80/x
  3. Step 3: Cross multiply
    1,207,324.20x = 1,810,986.30 × 408,631.80
  4. Step 4: Simplify right side
    1,207,324.20x = 740,026,591,544.34
  5. Step 5: Solve for x
    x = 740,026,591,544.34/1,207,324.20
  6. Step 6: Final answer
    x = 612,947.70

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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.