Home / 1,215,418.37-1,823,128.36-316,857.83

Finding the Fourth Proportional to 1,215,418.37, 1,823,128.36 and 316,857.83

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Solution

The fourth proportional to 1,215,418.37, 1,823,128.36 and 316,857.83 is: 475,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,418.37 : 1,823,128.36 = 316,857.83 : x
  2. Step 2: Convert to fraction form
    1,215,418.37/1,823,128.36 = 316,857.83/x
  3. Step 3: Cross multiply
    1,215,418.37x = 1,823,128.36 × 316,857.83
  4. Step 4: Simplify right side
    1,215,418.37x = 577,672,486,053.27
  5. Step 5: Solve for x
    x = 577,672,486,053.27/1,215,418.37
  6. Step 6: Final answer
    x = 475,286.95

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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.