Home / 347,776.20-521,008.20-324,156.60

Finding the Fourth Proportional to 347,776.20, 521,008.20 and 324,156.60

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Solution

The fourth proportional to 347,776.20, 521,008.20 and 324,156.60 is: 485,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,776.20 : 521,008.20 = 324,156.60 : x
  2. Step 2: Convert to fraction form
    347,776.20/521,008.20 = 324,156.60/x
  3. Step 3: Cross multiply
    347,776.20x = 521,008.20 × 324,156.60
  4. Step 4: Simplify right side
    347,776.20x = 168,888,246,684.12
  5. Step 5: Solve for x
    x = 168,888,246,684.12/347,776.20
  6. Step 6: Final answer
    x = 485,623.36

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1.5x scale

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.