Home / 1,076,880.20-1,615,305.90-328,929.80

Finding the Fourth Proportional to 1,076,880.20, 1,615,305.90 and 328,929.80

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Solution

The fourth proportional to 1,076,880.20, 1,615,305.90 and 328,929.80 is: 493,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,880.20 : 1,615,305.90 = 328,929.80 : x
  2. Step 2: Convert to fraction form
    1,076,880.20/1,615,305.90 = 328,929.80/x
  3. Step 3: Cross multiply
    1,076,880.20x = 1,615,305.90 × 328,929.80
  4. Step 4: Simplify right side
    1,076,880.20x = 531,322,246,625.82
  5. Step 5: Solve for x
    x = 531,322,246,625.82/1,076,880.20
  6. Step 6: Final answer
    x = 493,390.30

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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.