Home / 1,238,238.87-1,857,358.71-817,416.33

Finding the Fourth Proportional to 1,238,238.87, 1,857,358.71 and 817,416.33

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Solution

The fourth proportional to 1,238,238.87, 1,857,358.71 and 817,416.33 is: 1,226,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,238.87 : 1,857,358.71 = 817,416.33 : x
  2. Step 2: Convert to fraction form
    1,238,238.87/1,857,358.71 = 817,416.33/x
  3. Step 3: Cross multiply
    1,238,238.87x = 1,857,358.71 × 817,416.33
  4. Step 4: Simplify right side
    1,238,238.87x = 1,518,235,340,221.73
  5. Step 5: Solve for x
    x = 1,518,235,340,221.73/1,238,238.87
  6. Step 6: Final answer
    x = 1,226,124.76

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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.