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Finding the Fourth Proportional to 501,406.26, 691,899.51 and 275,051.76

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Solution

The fourth proportional to 501,406.26, 691,899.51 and 275,051.76 is: 379,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,406.26 : 691,899.51 = 275,051.76 : x
  2. Step 2: Convert to fraction form
    501,406.26/691,899.51 = 275,051.76/x
  3. Step 3: Cross multiply
    501,406.26x = 691,899.51 × 275,051.76
  4. Step 4: Simplify right side
    501,406.26x = 190,308,177,968.64
  5. Step 5: Solve for x
    x = 190,308,177,968.64/501,406.26
  6. Step 6: Final answer
    x = 379,548.87

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1.5x scale

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.