Home / 807,659.80-1,209,156.90-492,731.80

Finding the Fourth Proportional to 807,659.80, 1,209,156.90 and 492,731.80

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Solution

The fourth proportional to 807,659.80, 1,209,156.90 and 492,731.80 is: 737,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,659.80 : 1,209,156.90 = 492,731.80 : x
  2. Step 2: Convert to fraction form
    807,659.80/1,209,156.90 = 492,731.80/x
  3. Step 3: Cross multiply
    807,659.80x = 1,209,156.90 × 492,731.80
  4. Step 4: Simplify right side
    807,659.80x = 595,790,055,819.42
  5. Step 5: Solve for x
    x = 595,790,055,819.42/807,659.80
  6. Step 6: Final answer
    x = 737,674.52

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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.