Home / 1,185,282.96-1,635,690.48-641,418.75

Finding the Fourth Proportional to 1,185,282.96, 1,635,690.48 and 641,418.75

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Solution

The fourth proportional to 1,185,282.96, 1,635,690.48 and 641,418.75 is: 885,157.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,282.96 : 1,635,690.48 = 641,418.75 : x
  2. Step 2: Convert to fraction form
    1,185,282.96/1,635,690.48 = 641,418.75/x
  3. Step 3: Cross multiply
    1,185,282.96x = 1,635,690.48 × 641,418.75
  4. Step 4: Simplify right side
    1,185,282.96x = 1,049,162,543,068.50
  5. Step 5: Solve for x
    x = 1,049,162,543,068.50/1,185,282.96
  6. Step 6: Final answer
    x = 885,157.87

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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.