Home / 1,185,274.64-1,635,678.99-641,410.43

Finding the Fourth Proportional to 1,185,274.64, 1,635,678.99 and 641,410.43

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Solution

The fourth proportional to 1,185,274.64, 1,635,678.99 and 641,410.43 is: 885,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,274.64 : 1,635,678.99 = 641,410.43 : x
  2. Step 2: Convert to fraction form
    1,185,274.64/1,635,678.99 = 641,410.43/x
  3. Step 3: Cross multiply
    1,185,274.64x = 1,635,678.99 × 641,410.43
  4. Step 4: Simplify right side
    1,185,274.64x = 1,049,141,556,139.47
  5. Step 5: Solve for x
    x = 1,049,141,556,139.47/1,185,274.64
  6. Step 6: Final answer
    x = 885,146.38

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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.