Home / 825,127.08-1,236,975.06-319,339.89

Finding the Fourth Proportional to 825,127.08, 1,236,975.06 and 319,339.89

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Solution

The fourth proportional to 825,127.08, 1,236,975.06 and 319,339.89 is: 478,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,127.08 : 1,236,975.06 = 319,339.89 : x
  2. Step 2: Convert to fraction form
    825,127.08/1,236,975.06 = 319,339.89/x
  3. Step 3: Cross multiply
    825,127.08x = 1,236,975.06 × 319,339.89
  4. Step 4: Simplify right side
    825,127.08x = 395,015,479,593.14
  5. Step 5: Solve for x
    x = 395,015,479,593.14/825,127.08
  6. Step 6: Final answer
    x = 478,732.90

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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.