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Finding the Fourth Proportional to 542,172.30, 812,092.05 and 448,860.30

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Solution

The fourth proportional to 542,172.30, 812,092.05 and 448,860.30 is: 672,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,172.30 : 812,092.05 = 448,860.30 : x
  2. Step 2: Convert to fraction form
    542,172.30/812,092.05 = 448,860.30/x
  3. Step 3: Cross multiply
    542,172.30x = 812,092.05 × 448,860.30
  4. Step 4: Simplify right side
    542,172.30x = 364,515,881,190.62
  5. Step 5: Solve for x
    x = 364,515,881,190.62/542,172.30
  6. Step 6: Final answer
    x = 672,324.80

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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.