Home / 1,216,375.27-1,678,530.09-672,479.30

Finding the Fourth Proportional to 1,216,375.27, 1,678,530.09 and 672,479.30

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Solution

The fourth proportional to 1,216,375.27, 1,678,530.09 and 672,479.30 is: 927,983.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,375.27 : 1,678,530.09 = 672,479.30 : x
  2. Step 2: Convert to fraction form
    1,216,375.27/1,678,530.09 = 672,479.30/x
  3. Step 3: Cross multiply
    1,216,375.27x = 1,678,530.09 × 672,479.30
  4. Step 4: Simplify right side
    1,216,375.27x = 1,128,776,739,952.14
  5. Step 5: Solve for x
    x = 1,128,776,739,952.14/1,216,375.27
  6. Step 6: Final answer
    x = 927,983.96

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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.