Home / 1,216,350.10-1,678,490.89-672,453.37

Finding the Fourth Proportional to 1,216,350.10, 1,678,490.89 and 672,453.37

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Solution

The fourth proportional to 1,216,350.10, 1,678,490.89 and 672,453.37 is: 927,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,350.10 : 1,678,490.89 = 672,453.37 : x
  2. Step 2: Convert to fraction form
    1,216,350.10/1,678,490.89 = 672,453.37/x
  3. Step 3: Cross multiply
    1,216,350.10x = 1,678,490.89 × 672,453.37
  4. Step 4: Simplify right side
    1,216,350.10x = 1,128,706,855,494.80
  5. Step 5: Solve for x
    x = 1,128,706,855,494.80/1,216,350.10
  6. Step 6: Final answer
    x = 927,945.71

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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.