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Finding the Fourth Proportional to 762,571.80, 1,051,490.16 and 624,321

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Solution

The fourth proportional to 762,571.80, 1,051,490.16 and 624,321 is: 860,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,571.80 : 1,051,490.16 = 624,321 : x
  2. Step 2: Convert to fraction form
    762,571.80/1,051,490.16 = 624,321/x
  3. Step 3: Cross multiply
    762,571.80x = 1,051,490.16 × 624,321
  4. Step 4: Simplify right side
    762,571.80x = 656,467,388,181.36
  5. Step 5: Solve for x
    x = 656,467,388,181.36/762,571.80
  6. Step 6: Final answer
    x = 860,859.78

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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.