Home / 857,433.63-1,286,150.91-217,785.33

Finding the Fourth Proportional to 857,433.63, 1,286,150.91 and 217,785.33

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Solution

The fourth proportional to 857,433.63, 1,286,150.91 and 217,785.33 is: 326,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,433.63 : 1,286,150.91 = 217,785.33 : x
  2. Step 2: Convert to fraction form
    857,433.63/1,286,150.91 = 217,785.33/x
  3. Step 3: Cross multiply
    857,433.63x = 1,286,150.91 × 217,785.33
  4. Step 4: Simplify right side
    857,433.63x = 280,104,800,364.15
  5. Step 5: Solve for x
    x = 280,104,800,364.15/857,433.63
  6. Step 6: Final answer
    x = 326,678.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.