Home / 727,961.60-1,091,942.40-447,636.80

Finding the Fourth Proportional to 727,961.60, 1,091,942.40 and 447,636.80

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Solution

The fourth proportional to 727,961.60, 1,091,942.40 and 447,636.80 is: 671,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,961.60 : 1,091,942.40 = 447,636.80 : x
  2. Step 2: Convert to fraction form
    727,961.60/1,091,942.40 = 447,636.80/x
  3. Step 3: Cross multiply
    727,961.60x = 1,091,942.40 × 447,636.80
  4. Step 4: Simplify right side
    727,961.60x = 488,793,601,720.32
  5. Step 5: Solve for x
    x = 488,793,601,720.32/727,961.60
  6. Step 6: Final answer
    x = 671,455.20

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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.