Home / 1,076,634.20-1,615,187.76-318,416.56

Finding the Fourth Proportional to 1,076,634.20, 1,615,187.76 and 318,416.56

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Solution

The fourth proportional to 1,076,634.20, 1,615,187.76 and 318,416.56 is: 477,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,634.20 : 1,615,187.76 = 318,416.56 : x
  2. Step 2: Convert to fraction form
    1,076,634.20/1,615,187.76 = 318,416.56/x
  3. Step 3: Cross multiply
    1,076,634.20x = 1,615,187.76 × 318,416.56
  4. Step 4: Simplify right side
    1,076,634.20x = 514,302,530,293.31
  5. Step 5: Solve for x
    x = 514,302,530,293.31/1,076,634.20
  6. Step 6: Final answer
    x = 477,694.77

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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.