Home / 497,719.20-746,674.80-213,405.60

Finding the Fourth Proportional to 497,719.20, 746,674.80 and 213,405.60

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Solution

The fourth proportional to 497,719.20, 746,674.80 and 213,405.60 is: 320,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,719.20 : 746,674.80 = 213,405.60 : x
  2. Step 2: Convert to fraction form
    497,719.20/746,674.80 = 213,405.60/x
  3. Step 3: Cross multiply
    497,719.20x = 746,674.80 × 213,405.60
  4. Step 4: Simplify right side
    497,719.20x = 159,344,583,698.88
  5. Step 5: Solve for x
    x = 159,344,583,698.88/497,719.20
  6. Step 6: Final answer
    x = 320,149.56

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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.