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Finding the Fourth Proportional to 820,070.80, 1,131,699 and 452,539.36

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Solution

The fourth proportional to 820,070.80, 1,131,699 and 452,539.36 is: 624,505.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,070.80 : 1,131,699 = 452,539.36 : x
  2. Step 2: Convert to fraction form
    820,070.80/1,131,699 = 452,539.36/x
  3. Step 3: Cross multiply
    820,070.80x = 1,131,699 × 452,539.36
  4. Step 4: Simplify right side
    820,070.80x = 512,138,341,172.64
  5. Step 5: Solve for x
    x = 512,138,341,172.64/820,070.80
  6. Step 6: Final answer
    x = 624,505.03

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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.