Home / 839,910.80-1,259,866.20-503,987.60

Finding the Fourth Proportional to 839,910.80, 1,259,866.20 and 503,987.60

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Solution

The fourth proportional to 839,910.80, 1,259,866.20 and 503,987.60 is: 755,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,910.80 : 1,259,866.20 = 503,987.60 : x
  2. Step 2: Convert to fraction form
    839,910.80/1,259,866.20 = 503,987.60/x
  3. Step 3: Cross multiply
    839,910.80x = 1,259,866.20 × 503,987.60
  4. Step 4: Simplify right side
    839,910.80x = 634,956,942,459.12
  5. Step 5: Solve for x
    x = 634,956,942,459.12/839,910.80
  6. Step 6: Final answer
    x = 755,981.40

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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.