Home / 850,511.70-1,275,767.55-513,932.40

Finding the Fourth Proportional to 850,511.70, 1,275,767.55 and 513,932.40

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Solution

The fourth proportional to 850,511.70, 1,275,767.55 and 513,932.40 is: 770,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,511.70 : 1,275,767.55 = 513,932.40 : x
  2. Step 2: Convert to fraction form
    850,511.70/1,275,767.55 = 513,932.40/x
  3. Step 3: Cross multiply
    850,511.70x = 1,275,767.55 × 513,932.40
  4. Step 4: Simplify right side
    850,511.70x = 655,658,278,813.62
  5. Step 5: Solve for x
    x = 655,658,278,813.62/850,511.70
  6. Step 6: Final answer
    x = 770,898.60

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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.