Home / 1,247,804.39-1,721,971.23-674,844.55

Finding the Fourth Proportional to 1,247,804.39, 1,721,971.23 and 674,844.55

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Solution

The fourth proportional to 1,247,804.39, 1,721,971.23 and 674,844.55 is: 931,286.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,804.39 : 1,721,971.23 = 674,844.55 : x
  2. Step 2: Convert to fraction form
    1,247,804.39/1,721,971.23 = 674,844.55/x
  3. Step 3: Cross multiply
    1,247,804.39x = 1,721,971.23 × 674,844.55
  4. Step 4: Simplify right side
    1,247,804.39x = 1,162,062,899,822.30
  5. Step 5: Solve for x
    x = 1,162,062,899,822.30/1,247,804.39
  6. Step 6: Final answer
    x = 931,286.11

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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.