Home / 1,185,313.13-1,635,718.28-641,436.33

Finding the Fourth Proportional to 1,185,313.13, 1,635,718.28 and 641,436.33

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Solution

The fourth proportional to 1,185,313.13, 1,635,718.28 and 641,436.33 is: 885,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,313.13 : 1,635,718.28 = 641,436.33 : x
  2. Step 2: Convert to fraction form
    1,185,313.13/1,635,718.28 = 641,436.33/x
  3. Step 3: Cross multiply
    1,185,313.13x = 1,635,718.28 × 641,436.33
  4. Step 4: Simplify right side
    1,185,313.13x = 1,049,209,127,229.93
  5. Step 5: Solve for x
    x = 1,049,209,127,229.93/1,185,313.13
  6. Step 6: Final answer
    x = 885,174.65

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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.