Home / 1,296,249.30-1,788,814.35-715,472.31

Finding the Fourth Proportional to 1,296,249.30, 1,788,814.35 and 715,472.31

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Solution

The fourth proportional to 1,296,249.30, 1,788,814.35 and 715,472.31 is: 987,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,249.30 : 1,788,814.35 = 715,472.31 : x
  2. Step 2: Convert to fraction form
    1,296,249.30/1,788,814.35 = 715,472.31/x
  3. Step 3: Cross multiply
    1,296,249.30x = 1,788,814.35 × 715,472.31
  4. Step 4: Simplify right side
    1,296,249.30x = 1,279,847,135,155.65
  5. Step 5: Solve for x
    x = 1,279,847,135,155.65/1,296,249.30
  6. Step 6: Final answer
    x = 987,346.44

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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.