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Finding the Fourth Proportional to 525,521.91, 788,539.68 and 325,788.87

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Solution

The fourth proportional to 525,521.91, 788,539.68 and 325,788.87 is: 488,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,521.91 : 788,539.68 = 325,788.87 : x
  2. Step 2: Convert to fraction form
    525,521.91/788,539.68 = 325,788.87/x
  3. Step 3: Cross multiply
    525,521.91x = 788,539.68 × 325,788.87
  4. Step 4: Simplify right side
    525,521.91x = 256,897,451,297.36
  5. Step 5: Solve for x
    x = 256,897,451,297.36/525,521.91
  6. Step 6: Final answer
    x = 488,842.51

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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.