Home / 771,081.40-1,063,965.32-484,398.44

Finding the Fourth Proportional to 771,081.40, 1,063,965.32 and 484,398.44

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Solution

The fourth proportional to 771,081.40, 1,063,965.32 and 484,398.44 is: 668,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,081.40 : 1,063,965.32 = 484,398.44 : x
  2. Step 2: Convert to fraction form
    771,081.40/1,063,965.32 = 484,398.44/x
  3. Step 3: Cross multiply
    771,081.40x = 1,063,965.32 × 484,398.44
  4. Step 4: Simplify right side
    771,081.40x = 515,383,141,222.10
  5. Step 5: Solve for x
    x = 515,383,141,222.10/771,081.40
  6. Step 6: Final answer
    x = 668,390.06

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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.