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Finding the Fourth Proportional to 449,480.89, 620,259.91 and 245,528.88

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Solution

The fourth proportional to 449,480.89, 620,259.91 and 245,528.88 is: 338,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,480.89 : 620,259.91 = 245,528.88 : x
  2. Step 2: Convert to fraction form
    449,480.89/620,259.91 = 245,528.88/x
  3. Step 3: Cross multiply
    449,480.89x = 620,259.91 × 245,528.88
  4. Step 4: Simplify right side
    449,480.89x = 152,291,721,011.20
  5. Step 5: Solve for x
    x = 152,291,721,011.20/449,480.89
  6. Step 6: Final answer
    x = 338,816.90

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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.