Home / 1,218,071.27-1,679,821.44-1,045,930.68

Finding the Fourth Proportional to 1,218,071.27, 1,679,821.44 and 1,045,930.68

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Solution

The fourth proportional to 1,218,071.27, 1,679,821.44 and 1,045,930.68 is: 1,442,425.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,071.27 : 1,679,821.44 = 1,045,930.68 : x
  2. Step 2: Convert to fraction form
    1,218,071.27/1,679,821.44 = 1,045,930.68/x
  3. Step 3: Cross multiply
    1,218,071.27x = 1,679,821.44 × 1,045,930.68
  4. Step 4: Simplify right side
    1,218,071.27x = 1,756,976,781,017.78
  5. Step 5: Solve for x
    x = 1,756,976,781,017.78/1,218,071.27
  6. Step 6: Final answer
    x = 1,442,425.28

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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.