Home / 856,326.32-1,284,669.72-323,835.44

Finding the Fourth Proportional to 856,326.32, 1,284,669.72 and 323,835.44

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Solution

The fourth proportional to 856,326.32, 1,284,669.72 and 323,835.44 is: 485,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,326.32 : 1,284,669.72 = 323,835.44 : x
  2. Step 2: Convert to fraction form
    856,326.32/1,284,669.72 = 323,835.44/x
  3. Step 3: Cross multiply
    856,326.32x = 1,284,669.72 × 323,835.44
  4. Step 4: Simplify right side
    856,326.32x = 416,021,584,030.88
  5. Step 5: Solve for x
    x = 416,021,584,030.88/856,326.32
  6. Step 6: Final answer
    x = 485,821.32

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1.5x scale

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.