Home / 1,216,288.64-1,678,466.97-672,438.03

Finding the Fourth Proportional to 1,216,288.64, 1,678,466.97 and 672,438.03

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Solution

The fourth proportional to 1,216,288.64, 1,678,466.97 and 672,438.03 is: 927,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,288.64 : 1,678,466.97 = 672,438.03 : x
  2. Step 2: Convert to fraction form
    1,216,288.64/1,678,466.97 = 672,438.03/x
  3. Step 3: Cross multiply
    1,216,288.64x = 1,678,466.97 × 672,438.03
  4. Step 4: Simplify right side
    1,216,288.64x = 1,128,665,022,726.87
  5. Step 5: Solve for x
    x = 1,128,665,022,726.87/1,216,288.64
  6. Step 6: Final answer
    x = 927,958.21

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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.