Home / 756,475.20-1,043,992.80-434,289.60

Finding the Fourth Proportional to 756,475.20, 1,043,992.80 and 434,289.60

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Solution

The fourth proportional to 756,475.20, 1,043,992.80 and 434,289.60 is: 599,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,475.20 : 1,043,992.80 = 434,289.60 : x
  2. Step 2: Convert to fraction form
    756,475.20/1,043,992.80 = 434,289.60/x
  3. Step 3: Cross multiply
    756,475.20x = 1,043,992.80 × 434,289.60
  4. Step 4: Simplify right side
    756,475.20x = 453,395,215,514.88
  5. Step 5: Solve for x
    x = 453,395,215,514.88/756,475.20
  6. Step 6: Final answer
    x = 599,352.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.