Home / 859,894.40-1,289,854.20-327,444.86

Finding the Fourth Proportional to 859,894.40, 1,289,854.20 and 327,444.86

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Solution

The fourth proportional to 859,894.40, 1,289,854.20 and 327,444.86 is: 491,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,894.40 : 1,289,854.20 = 327,444.86 : x
  2. Step 2: Convert to fraction form
    859,894.40/1,289,854.20 = 327,444.86/x
  3. Step 3: Cross multiply
    859,894.40x = 1,289,854.20 × 327,444.86
  4. Step 4: Simplify right side
    859,894.40x = 422,356,127,939.41
  5. Step 5: Solve for x
    x = 422,356,127,939.41/859,894.40
  6. Step 6: Final answer
    x = 491,172.09

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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.