Home / 1,181,721.12-1,630,754.28-672,412.56

Finding the Fourth Proportional to 1,181,721.12, 1,630,754.28 and 672,412.56

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Solution

The fourth proportional to 1,181,721.12, 1,630,754.28 and 672,412.56 is: 927,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,721.12 : 1,630,754.28 = 672,412.56 : x
  2. Step 2: Convert to fraction form
    1,181,721.12/1,630,754.28 = 672,412.56/x
  3. Step 3: Cross multiply
    1,181,721.12x = 1,630,754.28 × 672,412.56
  4. Step 4: Simplify right side
    1,181,721.12x = 1,096,539,660,145.76
  5. Step 5: Solve for x
    x = 1,096,539,660,145.76/1,181,721.12
  6. Step 6: Final answer
    x = 927,917.46

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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.