Home / 1,288,437.20-1,932,653.72-328,892.72

Finding the Fourth Proportional to 1,288,437.20, 1,932,653.72 and 328,892.72

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Solution

The fourth proportional to 1,288,437.20, 1,932,653.72 and 328,892.72 is: 493,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,437.20 : 1,932,653.72 = 328,892.72 : x
  2. Step 2: Convert to fraction form
    1,288,437.20/1,932,653.72 = 328,892.72/x
  3. Step 3: Cross multiply
    1,288,437.20x = 1,932,653.72 × 328,892.72
  4. Step 4: Simplify right side
    1,288,437.20x = 635,635,738,788.92
  5. Step 5: Solve for x
    x = 635,635,738,788.92/1,288,437.20
  6. Step 6: Final answer
    x = 493,338.55

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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.