Home / 1,216,879.88-1,679,305.38-672,987.56

Finding the Fourth Proportional to 1,216,879.88, 1,679,305.38 and 672,987.56

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Solution

The fourth proportional to 1,216,879.88, 1,679,305.38 and 672,987.56 is: 928,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,879.88 : 1,679,305.38 = 672,987.56 : x
  2. Step 2: Convert to fraction form
    1,216,879.88/1,679,305.38 = 672,987.56/x
  3. Step 3: Cross multiply
    1,216,879.88x = 1,679,305.38 × 672,987.56
  4. Step 4: Simplify right side
    1,216,879.88x = 1,130,151,630,181.07
  5. Step 5: Solve for x
    x = 1,130,151,630,181.07/1,216,879.88
  6. Step 6: Final answer
    x = 928,729.00

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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.