Home / 1,299,646.58-1,793,391.90-718,857.20

Finding the Fourth Proportional to 1,299,646.58, 1,793,391.90 and 718,857.20

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Solution

The fourth proportional to 1,299,646.58, 1,793,391.90 and 718,857.20 is: 991,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,646.58 : 1,793,391.90 = 718,857.20 : x
  2. Step 2: Convert to fraction form
    1,299,646.58/1,793,391.90 = 718,857.20/x
  3. Step 3: Cross multiply
    1,299,646.58x = 1,793,391.90 × 718,857.20
  4. Step 4: Simplify right side
    1,299,646.58x = 1,289,192,679,736.68
  5. Step 5: Solve for x
    x = 1,289,192,679,736.68/1,299,646.58
  6. Step 6: Final answer
    x = 991,956.35

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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.