Home / 811,928.70-1,217,893.05-788,600.70

Finding the Fourth Proportional to 811,928.70, 1,217,893.05 and 788,600.70

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Solution

The fourth proportional to 811,928.70, 1,217,893.05 and 788,600.70 is: 1,182,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,928.70 : 1,217,893.05 = 788,600.70 : x
  2. Step 2: Convert to fraction form
    811,928.70/1,217,893.05 = 788,600.70/x
  3. Step 3: Cross multiply
    811,928.70x = 1,217,893.05 × 788,600.70
  4. Step 4: Simplify right side
    811,928.70x = 960,431,311,755.14
  5. Step 5: Solve for x
    x = 960,431,311,755.14/811,928.70
  6. Step 6: Final answer
    x = 1,182,901.05

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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.