Home / 772,830.40-1,159,245.60-712,004.80

Finding the Fourth Proportional to 772,830.40, 1,159,245.60 and 712,004.80

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Solution

The fourth proportional to 772,830.40, 1,159,245.60 and 712,004.80 is: 1,068,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,830.40 : 1,159,245.60 = 712,004.80 : x
  2. Step 2: Convert to fraction form
    772,830.40/1,159,245.60 = 712,004.80/x
  3. Step 3: Cross multiply
    772,830.40x = 1,159,245.60 × 712,004.80
  4. Step 4: Simplify right side
    772,830.40x = 825,388,431,578.88
  5. Step 5: Solve for x
    x = 825,388,431,578.88/772,830.40
  6. Step 6: Final answer
    x = 1,068,007.20

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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.