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Finding the Fourth Proportional to 501,091.80, 751,637.70 and 442,042.80

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Solution

The fourth proportional to 501,091.80, 751,637.70 and 442,042.80 is: 663,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,091.80 : 751,637.70 = 442,042.80 : x
  2. Step 2: Convert to fraction form
    501,091.80/751,637.70 = 442,042.80/x
  3. Step 3: Cross multiply
    501,091.80x = 751,637.70 × 442,042.80
  4. Step 4: Simplify right side
    501,091.80x = 332,256,033,493.56
  5. Step 5: Solve for x
    x = 332,256,033,493.56/501,091.80
  6. Step 6: Final answer
    x = 663,064.20

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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.