Home / 449,845.40-620,786.68-245,897.12

Finding the Fourth Proportional to 449,845.40, 620,786.68 and 245,897.12

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Solution

The fourth proportional to 449,845.40, 620,786.68 and 245,897.12 is: 339,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,845.40 : 620,786.68 = 245,897.12 : x
  2. Step 2: Convert to fraction form
    449,845.40/620,786.68 = 245,897.12/x
  3. Step 3: Cross multiply
    449,845.40x = 620,786.68 × 245,897.12
  4. Step 4: Simplify right side
    449,845.40x = 152,649,657,068.84
  5. Step 5: Solve for x
    x = 152,649,657,068.84/449,845.40
  6. Step 6: Final answer
    x = 339,338.05

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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.