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Finding the Fourth Proportional to 542,012.46, 809,151.92 and 505,992.48

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Solution

The fourth proportional to 542,012.46, 809,151.92 and 505,992.48 is: 755,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,012.46 : 809,151.92 = 505,992.48 : x
  2. Step 2: Convert to fraction form
    542,012.46/809,151.92 = 505,992.48/x
  3. Step 3: Cross multiply
    542,012.46x = 809,151.92 × 505,992.48
  4. Step 4: Simplify right side
    542,012.46x = 409,424,784,167.60
  5. Step 5: Solve for x
    x = 409,424,784,167.60/542,012.46
  6. Step 6: Final answer
    x = 755,378.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.