Home / 815,538.31-1,222,633.95-359,804.77

Finding the Fourth Proportional to 815,538.31, 1,222,633.95 and 359,804.77

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Solution

The fourth proportional to 815,538.31, 1,222,633.95 and 359,804.77 is: 539,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,538.31 : 1,222,633.95 = 359,804.77 : x
  2. Step 2: Convert to fraction form
    815,538.31/1,222,633.95 = 359,804.77/x
  3. Step 3: Cross multiply
    815,538.31x = 1,222,633.95 × 359,804.77
  4. Step 4: Simplify right side
    815,538.31x = 439,909,522,768.09
  5. Step 5: Solve for x
    x = 439,909,522,768.09/815,538.31
  6. Step 6: Final answer
    x = 539,410.01

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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.