Home / 1,185,145.38-1,635,215.16-719,985.75

Finding the Fourth Proportional to 1,185,145.38, 1,635,215.16 and 719,985.75

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Solution

The fourth proportional to 1,185,145.38, 1,635,215.16 and 719,985.75 is: 993,406.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,145.38 : 1,635,215.16 = 719,985.75 : x
  2. Step 2: Convert to fraction form
    1,185,145.38/1,635,215.16 = 719,985.75/x
  3. Step 3: Cross multiply
    1,185,145.38x = 1,635,215.16 × 719,985.75
  4. Step 4: Simplify right side
    1,185,145.38x = 1,177,331,613,383.97
  5. Step 5: Solve for x
    x = 1,177,331,613,383.97/1,185,145.38
  6. Step 6: Final answer
    x = 993,406.91

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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.