Home / 1,400,428.43-1,933,414.81-1,319,715.82

Finding the Fourth Proportional to 1,400,428.43, 1,933,414.81 and 1,319,715.82

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Solution

The fourth proportional to 1,400,428.43, 1,933,414.81 and 1,319,715.82 is: 1,821,983.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,428.43 : 1,933,414.81 = 1,319,715.82 : x
  2. Step 2: Convert to fraction form
    1,400,428.43/1,933,414.81 = 1,319,715.82/x
  3. Step 3: Cross multiply
    1,400,428.43x = 1,933,414.81 × 1,319,715.82
  4. Step 4: Simplify right side
    1,400,428.43x = 2,551,558,111,379.29
  5. Step 5: Solve for x
    x = 2,551,558,111,379.29/1,400,428.43
  6. Step 6: Final answer
    x = 1,821,983.95

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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.