Home / 979,124.76-1,351,121.31-543,565.49

Finding the Fourth Proportional to 979,124.76, 1,351,121.31 and 543,565.49

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Solution

The fourth proportional to 979,124.76, 1,351,121.31 and 543,565.49 is: 750,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,124.76 : 1,351,121.31 = 543,565.49 : x
  2. Step 2: Convert to fraction form
    979,124.76/1,351,121.31 = 543,565.49/x
  3. Step 3: Cross multiply
    979,124.76x = 1,351,121.31 × 543,565.49
  4. Step 4: Simplify right side
    979,124.76x = 734,422,910,163.99
  5. Step 5: Solve for x
    x = 734,422,910,163.99/979,124.76
  6. Step 6: Final answer
    x = 750,081.03

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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.