Home / 1,185,287.21-1,635,696.29-641,423.01

Finding the Fourth Proportional to 1,185,287.21, 1,635,696.29 and 641,423.01

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Solution

The fourth proportional to 1,185,287.21, 1,635,696.29 and 641,423.01 is: 885,163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,287.21 : 1,635,696.29 = 641,423.01 : x
  2. Step 2: Convert to fraction form
    1,185,287.21/1,635,696.29 = 641,423.01/x
  3. Step 3: Cross multiply
    1,185,287.21x = 1,635,696.29 × 641,423.01
  4. Step 4: Simplify right side
    1,185,287.21x = 1,049,173,239,381.19
  5. Step 5: Solve for x
    x = 1,049,173,239,381.19/1,185,287.21
  6. Step 6: Final answer
    x = 885,163.73

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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.