Home / 1,238,815.91-1,858,901.15-480,687.27

Finding the Fourth Proportional to 1,238,815.91, 1,858,901.15 and 480,687.27

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Solution

The fourth proportional to 1,238,815.91, 1,858,901.15 and 480,687.27 is: 721,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,815.91 : 1,858,901.15 = 480,687.27 : x
  2. Step 2: Convert to fraction form
    1,238,815.91/1,858,901.15 = 480,687.27/x
  3. Step 3: Cross multiply
    1,238,815.91x = 1,858,901.15 × 480,687.27
  4. Step 4: Simplify right side
    1,238,815.91x = 893,550,118,993.36
  5. Step 5: Solve for x
    x = 893,550,118,993.36/1,238,815.91
  6. Step 6: Final answer
    x = 721,293.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.