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Finding the Fourth Proportional to 501,175.80, 749,576.70 and 448,250.40

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Solution

The fourth proportional to 501,175.80, 749,576.70 and 448,250.40 is: 670,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,175.80 : 749,576.70 = 448,250.40 : x
  2. Step 2: Convert to fraction form
    501,175.80/749,576.70 = 448,250.40/x
  3. Step 3: Cross multiply
    501,175.80x = 749,576.70 × 448,250.40
  4. Step 4: Simplify right side
    501,175.80x = 335,998,055,605.68
  5. Step 5: Solve for x
    x = 335,998,055,605.68/501,175.80
  6. Step 6: Final answer
    x = 670,419.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.