Home / 859,780.46-1,289,683.08-327,330.72

Finding the Fourth Proportional to 859,780.46, 1,289,683.08 and 327,330.72

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Solution

The fourth proportional to 859,780.46, 1,289,683.08 and 327,330.72 is: 491,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,780.46 : 1,289,683.08 = 327,330.72 : x
  2. Step 2: Convert to fraction form
    859,780.46/1,289,683.08 = 327,330.72/x
  3. Step 3: Cross multiply
    859,780.46x = 1,289,683.08 × 327,330.72
  4. Step 4: Simplify right side
    859,780.46x = 422,152,891,148.22
  5. Step 5: Solve for x
    x = 422,152,891,148.22/859,780.46
  6. Step 6: Final answer
    x = 491,000.80

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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.