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Finding the Fourth Proportional to 525,468.88, 725,200.63 and 321,654.49

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Solution

The fourth proportional to 525,468.88, 725,200.63 and 321,654.49 is: 443,915.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,468.88 : 725,200.63 = 321,654.49 : x
  2. Step 2: Convert to fraction form
    525,468.88/725,200.63 = 321,654.49/x
  3. Step 3: Cross multiply
    525,468.88x = 725,200.63 × 321,654.49
  4. Step 4: Simplify right side
    525,468.88x = 233,264,036,173.19
  5. Step 5: Solve for x
    x = 233,264,036,173.19/525,468.88
  6. Step 6: Final answer
    x = 443,915.99

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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.