Home / 727,755.60-1,091,633.40-447,430.80

Finding the Fourth Proportional to 727,755.60, 1,091,633.40 and 447,430.80

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Solution

The fourth proportional to 727,755.60, 1,091,633.40 and 447,430.80 is: 671,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,755.60 : 1,091,633.40 = 447,430.80 : x
  2. Step 2: Convert to fraction form
    727,755.60/1,091,633.40 = 447,430.80/x
  3. Step 3: Cross multiply
    727,755.60x = 1,091,633.40 × 447,430.80
  4. Step 4: Simplify right side
    727,755.60x = 488,430,405,468.72
  5. Step 5: Solve for x
    x = 488,430,405,468.72/727,755.60
  6. Step 6: Final answer
    x = 671,146.20

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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.