Home / 1,216,642.30-1,678,977.24-672,814.68

Finding the Fourth Proportional to 1,216,642.30, 1,678,977.24 and 672,814.68

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Solution

The fourth proportional to 1,216,642.30, 1,678,977.24 and 672,814.68 is: 928,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,642.30 : 1,678,977.24 = 672,814.68 : x
  2. Step 2: Convert to fraction form
    1,216,642.30/1,678,977.24 = 672,814.68/x
  3. Step 3: Cross multiply
    1,216,642.30x = 1,678,977.24 × 672,814.68
  4. Step 4: Simplify right side
    1,216,642.30x = 1,129,640,534,457.88
  5. Step 5: Solve for x
    x = 1,129,640,534,457.88/1,216,642.30
  6. Step 6: Final answer
    x = 928,490.27

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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.