Home / 778,709.44-1,074,619.03-421,013.44

Finding the Fourth Proportional to 778,709.44, 1,074,619.03 and 421,013.44

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Solution

The fourth proportional to 778,709.44, 1,074,619.03 and 421,013.44 is: 580,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,709.44 : 1,074,619.03 = 421,013.44 : x
  2. Step 2: Convert to fraction form
    778,709.44/1,074,619.03 = 421,013.44/x
  3. Step 3: Cross multiply
    778,709.44x = 1,074,619.03 × 421,013.44
  4. Step 4: Simplify right side
    778,709.44x = 452,429,050,770.68
  5. Step 5: Solve for x
    x = 452,429,050,770.68/778,709.44
  6. Step 6: Final answer
    x = 580,998.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.