Home / 1,216,395.80-1,678,558.38-672,499.88

Finding the Fourth Proportional to 1,216,395.80, 1,678,558.38 and 672,499.88

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Solution

The fourth proportional to 1,216,395.80, 1,678,558.38 and 672,499.88 is: 928,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,395.80 : 1,678,558.38 = 672,499.88 : x
  2. Step 2: Convert to fraction form
    1,216,395.80/1,678,558.38 = 672,499.88/x
  3. Step 3: Cross multiply
    1,216,395.80x = 1,678,558.38 × 672,499.88
  4. Step 4: Simplify right side
    1,216,395.80x = 1,128,830,309,122.99
  5. Step 5: Solve for x
    x = 1,128,830,309,122.99/1,216,395.80
  6. Step 6: Final answer
    x = 928,012.34

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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.