Home / 807,421.80-1,208,799.90-492,493.80

Finding the Fourth Proportional to 807,421.80, 1,208,799.90 and 492,493.80

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Solution

The fourth proportional to 807,421.80, 1,208,799.90 and 492,493.80 is: 737,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,421.80 : 1,208,799.90 = 492,493.80 : x
  2. Step 2: Convert to fraction form
    807,421.80/1,208,799.90 = 492,493.80/x
  3. Step 3: Cross multiply
    807,421.80x = 1,208,799.90 × 492,493.80
  4. Step 4: Simplify right side
    807,421.80x = 595,326,456,190.62
  5. Step 5: Solve for x
    x = 595,326,456,190.62/807,421.80
  6. Step 6: Final answer
    x = 737,317.79

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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.