Home / 839,908.80-1,259,863.20-503,985.60

Finding the Fourth Proportional to 839,908.80, 1,259,863.20 and 503,985.60

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Solution

The fourth proportional to 839,908.80, 1,259,863.20 and 503,985.60 is: 755,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,908.80 : 1,259,863.20 = 503,985.60 : x
  2. Step 2: Convert to fraction form
    839,908.80/1,259,863.20 = 503,985.60/x
  3. Step 3: Cross multiply
    839,908.80x = 1,259,863.20 × 503,985.60
  4. Step 4: Simplify right side
    839,908.80x = 634,952,910,769.92
  5. Step 5: Solve for x
    x = 634,952,910,769.92/839,908.80
  6. Step 6: Final answer
    x = 755,978.40

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Similar ratio
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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.