Home / 1,296,376.38-1,788,996.78-723,382.38

Finding the Fourth Proportional to 1,296,376.38, 1,788,996.78 and 723,382.38

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Solution

The fourth proportional to 1,296,376.38, 1,788,996.78 and 723,382.38 is: 998,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,376.38 : 1,788,996.78 = 723,382.38 : x
  2. Step 2: Convert to fraction form
    1,296,376.38/1,788,996.78 = 723,382.38/x
  3. Step 3: Cross multiply
    1,296,376.38x = 1,788,996.78 × 723,382.38
  4. Step 4: Simplify right side
    1,296,376.38x = 1,294,128,748,528.74
  5. Step 5: Solve for x
    x = 1,294,128,748,528.74/1,296,376.38
  6. Step 6: Final answer
    x = 998,266.22

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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.