Home / 1,288,425.31-1,932,635.85-328,880.77

Finding the Fourth Proportional to 1,288,425.31, 1,932,635.85 and 328,880.77

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Solution

The fourth proportional to 1,288,425.31, 1,932,635.85 and 328,880.77 is: 493,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,425.31 : 1,932,635.85 = 328,880.77 : x
  2. Step 2: Convert to fraction form
    1,288,425.31/1,932,635.85 = 328,880.77/x
  3. Step 3: Cross multiply
    1,288,425.31x = 1,932,635.85 × 328,880.77
  4. Step 4: Simplify right side
    1,288,425.31x = 635,606,760,412.71
  5. Step 5: Solve for x
    x = 635,606,760,412.71/1,288,425.31
  6. Step 6: Final answer
    x = 493,320.61

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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.