Home / 448,780.38-621,936.98-440,264.44

Finding the Fourth Proportional to 448,780.38, 621,936.98 and 440,264.44

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Solution

The fourth proportional to 448,780.38, 621,936.98 and 440,264.44 is: 610,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,780.38 : 621,936.98 = 440,264.44 : x
  2. Step 2: Convert to fraction form
    448,780.38/621,936.98 = 440,264.44/x
  3. Step 3: Cross multiply
    448,780.38x = 621,936.98 × 440,264.44
  4. Step 4: Simplify right side
    448,780.38x = 273,816,736,214.99
  5. Step 5: Solve for x
    x = 273,816,736,214.99/448,780.38
  6. Step 6: Final answer
    x = 610,135.27

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.