Home / 979,513.43-1,351,715.04-549,785.75

Finding the Fourth Proportional to 979,513.43, 1,351,715.04 and 549,785.75

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Solution

The fourth proportional to 979,513.43, 1,351,715.04 and 549,785.75 is: 758,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,513.43 : 1,351,715.04 = 549,785.75 : x
  2. Step 2: Convert to fraction form
    979,513.43/1,351,715.04 = 549,785.75/x
  3. Step 3: Cross multiply
    979,513.43x = 1,351,715.04 × 549,785.75
  4. Step 4: Simplify right side
    979,513.43x = 743,153,667,052.68
  5. Step 5: Solve for x
    x = 743,153,667,052.68/979,513.43
  6. Step 6: Final answer
    x = 758,696.76

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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.