Home / 642,419.26-964,511.61-327,088.06

Finding the Fourth Proportional to 642,419.26, 964,511.61 and 327,088.06

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Solution

The fourth proportional to 642,419.26, 964,511.61 and 327,088.06 is: 491,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,419.26 : 964,511.61 = 327,088.06 : x
  2. Step 2: Convert to fraction form
    642,419.26/964,511.61 = 327,088.06/x
  3. Step 3: Cross multiply
    642,419.26x = 964,511.61 × 327,088.06
  4. Step 4: Simplify right side
    642,419.26x = 315,480,231,362.38
  5. Step 5: Solve for x
    x = 315,480,231,362.38/642,419.26
  6. Step 6: Final answer
    x = 491,081.53

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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.