Home / 1,302,160.05-1,796,939.03-721,359.47

Finding the Fourth Proportional to 1,302,160.05, 1,796,939.03 and 721,359.47

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Solution

The fourth proportional to 1,302,160.05, 1,796,939.03 and 721,359.47 is: 995,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,160.05 : 1,796,939.03 = 721,359.47 : x
  2. Step 2: Convert to fraction form
    1,302,160.05/1,796,939.03 = 721,359.47/x
  3. Step 3: Cross multiply
    1,302,160.05x = 1,796,939.03 × 721,359.47
  4. Step 4: Simplify right side
    1,302,160.05x = 1,296,238,992,598.86
  5. Step 5: Solve for x
    x = 1,296,238,992,598.86/1,302,160.05
  6. Step 6: Final answer
    x = 995,452.90

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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.