Home / 1,368,129.38-1,887,558.24-885,305.38

Finding the Fourth Proportional to 1,368,129.38, 1,887,558.24 and 885,305.38

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Solution

The fourth proportional to 1,368,129.38, 1,887,558.24 and 885,305.38 is: 1,221,423.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,129.38 : 1,887,558.24 = 885,305.38 : x
  2. Step 2: Convert to fraction form
    1,368,129.38/1,887,558.24 = 885,305.38/x
  3. Step 3: Cross multiply
    1,368,129.38x = 1,887,558.24 × 885,305.38
  4. Step 4: Simplify right side
    1,368,129.38x = 1,671,065,464,935.33
  5. Step 5: Solve for x
    x = 1,671,065,464,935.33/1,368,129.38
  6. Step 6: Final answer
    x = 1,221,423.57

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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.