Home / 979,512.60-1,351,653.27-549,709.69

Finding the Fourth Proportional to 979,512.60, 1,351,653.27 and 549,709.69

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Solution

The fourth proportional to 979,512.60, 1,351,653.27 and 549,709.69 is: 758,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,512.60 : 1,351,653.27 = 549,709.69 : x
  2. Step 2: Convert to fraction form
    979,512.60/1,351,653.27 = 549,709.69/x
  3. Step 3: Cross multiply
    979,512.60x = 1,351,653.27 × 549,709.69
  4. Step 4: Simplify right side
    979,512.60x = 743,016,900,039.19
  5. Step 5: Solve for x
    x = 743,016,900,039.19/979,512.60
  6. Step 6: Final answer
    x = 758,557.78

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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.