Home / 756,830.64-1,135,385.88-217,064.32

Finding the Fourth Proportional to 756,830.64, 1,135,385.88 and 217,064.32

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Solution

The fourth proportional to 756,830.64, 1,135,385.88 and 217,064.32 is: 325,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,830.64 : 1,135,385.88 = 217,064.32 : x
  2. Step 2: Convert to fraction form
    756,830.64/1,135,385.88 = 217,064.32/x
  3. Step 3: Cross multiply
    756,830.64x = 1,135,385.88 × 217,064.32
  4. Step 4: Simplify right side
    756,830.64x = 246,451,763,979.80
  5. Step 5: Solve for x
    x = 246,451,763,979.80/756,830.64
  6. Step 6: Final answer
    x = 325,636.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.