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Finding the Fourth Proportional to 449,832.80, 620,785.86 and 245,897.30

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Solution

The fourth proportional to 449,832.80, 620,785.86 and 245,897.30 is: 339,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,832.80 : 620,785.86 = 245,897.30 : x
  2. Step 2: Convert to fraction form
    449,832.80/620,785.86 = 245,897.30/x
  3. Step 3: Cross multiply
    449,832.80x = 620,785.86 × 245,897.30
  4. Step 4: Simplify right side
    449,832.80x = 152,649,566,852.18
  5. Step 5: Solve for x
    x = 152,649,566,852.18/449,832.80
  6. Step 6: Final answer
    x = 339,347.35

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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.