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Finding the Fourth Proportional to 449,493.86, 620,276.63 and 245,504.16

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Solution

The fourth proportional to 449,493.86, 620,276.63 and 245,504.16 is: 338,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,493.86 : 620,276.63 = 245,504.16 : x
  2. Step 2: Convert to fraction form
    449,493.86/620,276.63 = 245,504.16/x
  3. Step 3: Cross multiply
    449,493.86x = 620,276.63 × 245,504.16
  4. Step 4: Simplify right side
    449,493.86x = 152,280,491,788.26
  5. Step 5: Solve for x
    x = 152,280,491,788.26/449,493.86
  6. Step 6: Final answer
    x = 338,782.14

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1.5x scale

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.