Home / 807,907.80-1,211,861.70-492,979.80

Finding the Fourth Proportional to 807,907.80, 1,211,861.70 and 492,979.80

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Solution

The fourth proportional to 807,907.80, 1,211,861.70 and 492,979.80 is: 739,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,907.80 : 1,211,861.70 = 492,979.80 : x
  2. Step 2: Convert to fraction form
    807,907.80/1,211,861.70 = 492,979.80/x
  3. Step 3: Cross multiply
    807,907.80x = 1,211,861.70 × 492,979.80
  4. Step 4: Simplify right side
    807,907.80x = 597,423,338,493.66
  5. Step 5: Solve for x
    x = 597,423,338,493.66/807,907.80
  6. Step 6: Final answer
    x = 739,469.70

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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.