Home / 807,777.80-1,211,666.70-492,849.80

Finding the Fourth Proportional to 807,777.80, 1,211,666.70 and 492,849.80

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Solution

The fourth proportional to 807,777.80, 1,211,666.70 and 492,849.80 is: 739,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,777.80 : 1,211,666.70 = 492,849.80 : x
  2. Step 2: Convert to fraction form
    807,777.80/1,211,666.70 = 492,849.80/x
  3. Step 3: Cross multiply
    807,777.80x = 1,211,666.70 × 492,849.80
  4. Step 4: Simplify right side
    807,777.80x = 597,169,690,761.66
  5. Step 5: Solve for x
    x = 597,169,690,761.66/807,777.80
  6. Step 6: Final answer
    x = 739,274.70

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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.