Home / 851,228.69-1,274,590.40-513,818.33

Finding the Fourth Proportional to 851,228.69, 1,274,590.40 and 513,818.33

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Solution

The fourth proportional to 851,228.69, 1,274,590.40 and 513,818.33 is: 769,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,228.69 : 1,274,590.40 = 513,818.33 : x
  2. Step 2: Convert to fraction form
    851,228.69/1,274,590.40 = 513,818.33/x
  3. Step 3: Cross multiply
    851,228.69x = 1,274,590.40 × 513,818.33
  4. Step 4: Simplify right side
    851,228.69x = 654,907,901,819.99
  5. Step 5: Solve for x
    x = 654,907,901,819.99/851,228.69
  6. Step 6: Final answer
    x = 769,367.75

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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.