Home / 612,826.59-919,815.81-320,915.93

Finding the Fourth Proportional to 612,826.59, 919,815.81 and 320,915.93

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Solution

The fourth proportional to 612,826.59, 919,815.81 and 320,915.93 is: 481,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,826.59 : 919,815.81 = 320,915.93 : x
  2. Step 2: Convert to fraction form
    612,826.59/919,815.81 = 320,915.93/x
  3. Step 3: Cross multiply
    612,826.59x = 919,815.81 × 320,915.93
  4. Step 4: Simplify right side
    612,826.59x = 295,183,541,194.92
  5. Step 5: Solve for x
    x = 295,183,541,194.92/612,826.59
  6. Step 6: Final answer
    x = 481,675.48

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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.