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Finding the Fourth Proportional to 501,092.80, 751,639.20 and 442,043.80

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Solution

The fourth proportional to 501,092.80, 751,639.20 and 442,043.80 is: 663,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,092.80 : 751,639.20 = 442,043.80 : x
  2. Step 2: Convert to fraction form
    501,092.80/751,639.20 = 442,043.80/x
  3. Step 3: Cross multiply
    501,092.80x = 751,639.20 × 442,043.80
  4. Step 4: Simplify right side
    501,092.80x = 332,257,448,196.96
  5. Step 5: Solve for x
    x = 332,257,448,196.96/501,092.80
  6. Step 6: Final answer
    x = 663,065.70

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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.