Home / 821,495.44-1,132,926.88-684,129.16

Finding the Fourth Proportional to 821,495.44, 1,132,926.88 and 684,129.16

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Solution

The fourth proportional to 821,495.44, 1,132,926.88 and 684,129.16 is: 943,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,495.44 : 1,132,926.88 = 684,129.16 : x
  2. Step 2: Convert to fraction form
    821,495.44/1,132,926.88 = 684,129.16/x
  3. Step 3: Cross multiply
    821,495.44x = 1,132,926.88 × 684,129.16
  4. Step 4: Simplify right side
    821,495.44x = 775,068,314,755.82
  5. Step 5: Solve for x
    x = 775,068,314,755.82/821,495.44
  6. Step 6: Final answer
    x = 943,484.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.