Home / 979,760.40-1,351,976.04-549,942

Finding the Fourth Proportional to 979,760.40, 1,351,976.04 and 549,942

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Solution

The fourth proportional to 979,760.40, 1,351,976.04 and 549,942 is: 758,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,760.40 : 1,351,976.04 = 549,942 : x
  2. Step 2: Convert to fraction form
    979,760.40/1,351,976.04 = 549,942/x
  3. Step 3: Cross multiply
    979,760.40x = 1,351,976.04 × 549,942
  4. Step 4: Simplify right side
    979,760.40x = 743,508,407,389.68
  5. Step 5: Solve for x
    x = 743,508,407,389.68/979,760.40
  6. Step 6: Final answer
    x = 758,867.58

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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.